The Car You Can’t Get Into: How Modern Vehicle Design Lost the Balance Between Safety, Packaging, and Human Use

Why the next breakthrough in car design may not be another screen, another battery, or another aerodynamic trick — but the simple ability to enter, sit, see, move, and escape

For most of automotive history, car design has been a negotiation.

A designer may sketch the emotional dream: the stance, the gesture, the proportions, the character, the promise. But the real car is born in the difficult space between design, engineering, production, cost, safety, performance, serviceability, legislation, and human use.

A good production vehicle is never just a shape. It is a total package.

That package used to be a remarkably well-balanced system. Not perfect, but generally coherent. The floor height, seating position, door aperture, roofline, shoulder height, beltline, glazing, pillars, dashboard, seat travel, steering wheel adjustment, crash structure, HVAC, wiring, manufacturing method, cost target, and exterior identity all had to work together. When done well, the result felt natural. You opened the door, got in, adjusted the seat, saw out, drove away, and did not think too much about the hidden complexity behind that simple action.

But over the past decade, that balance has become increasingly disturbed.

Many modern cars are impressive as technology objects, but increasingly compromised as human objects. They are safer in some measurable crash scenarios, more efficient in aerodynamic testing, more rigid in body structure, more digitally connected, and more ambitious in EV packaging. Yet many of them have become noticeably worse in one of the most basic aspects of vehicle design:

Can people actually get in and out comfortably, safely, and with dignity?

For tall people, older people, larger people, people with back or neck limitations, people with reduced hip flexibility, people carrying children, people wearing heavy clothing, people with mobility impairments, or simply people who do not match the idealized “average occupant,” modern cars can feel strangely exclusionary.

The door opening is often lower and more restricted at the top. The roof rail is thicker. The side curtain airbag package occupies space where a head used to pass. The battery pack raises the floor. The seat may be mounted higher than expected. The roofline may be lower for aerodynamic and styling reasons. The rocker panel may be wider because of side-impact and battery protection. The A-pillar may be thicker. The B-pillar may intrude. The steering wheel, center console, and instrument panel may reduce knee clearance. The beltline rises. The glass area shrinks. The car looks modern, strong, and safe.

But the person trying to get into it may feel like an afterthought.

This is not a minor inconvenience. It is a design failure. It is also a safety issue.

A car that is difficult to enter is also difficult to exit. A car that excludes a portion of the population from comfortable use is not truly advanced. A car that performs well in a crash laboratory but makes post-crash escape or rescue more difficult has not solved safety; it has narrowed the definition of safety.

The automotive industry needs to ask a difficult question:

Have we optimized the vehicle for regulations, ratings, and marketing — while losing sight of the human body?

The historic balance: when packaging was a core design discipline

There was a time when packaging was one of the most respected disciplines in car design. Designers understood that a car’s exterior proportions could not be separated from the human package inside.

The classic design process began with hard points: occupants, H-points, eyellipse, pedal positions, steering wheel, hip angle, luggage, engine, suspension, crash zones, glass, and manufacturing constraints. The designer’s skill was to make all of that look desirable. The best car designers did not simply draw beautiful shapes. They made necessity look intentional.

The package drawing was not a bureaucratic obstacle. It was the foundation.

In the postwar period, vehicles became more standardized around the needs of families, commuting, luggage, and everyday access. Sedans, wagons, hatchbacks, vans, and later MPVs and SUVs all represented different attempts to solve the same problem: how to package people and cargo within a mechanically and economically feasible vehicle.

A well-designed family sedan from the 1980s or 1990s often had surprisingly good access. The roof was not excessively low. The door openings were generous. The beltline was lower. The glass area was larger. The pillars were thinner. The dashboard was often slimmer. The rocker panels were not as massive. The seat could be approached and entered in a more natural arc.

These cars were not as safe as modern cars in many crash scenarios. No serious designer would argue that we should return to thin pillars, weak roof structures, limited side-impact protection, and minimal restraint systems. The progress in crash safety has saved lives.

But we should be honest about what changed.

As crash structures grew stronger, pillars became larger. As side-impact protection improved, doors became thicker. As curtain airbags were added, roof rails and upper interior trim became more complex. As rollover and ejection mitigation became more important, side glass areas and roof structures became more heavily managed. As SUVs became heavier, side-impact crash energy increased. As EVs adopted skateboard battery packs, the floor rose. As aerodynamics became crucial for range and CO₂ targets, roofs became lower and more tapered. As styling trends emphasized high shoulders and narrow glass, visibility and access suffered.

Each individual change had a rational justification.

Together, they created a new problem.

The rise of safety structures — and the shrinking human aperture

Side-impact safety is one of the most important areas of modern vehicle development. A side impact gives the occupant very little crush distance compared with a frontal crash. There is simply less structure between the person and the striking object. The industry responded with stronger side structures, reinforced doors, improved B-pillars, side thorax airbags, side curtain airbags, and later more advanced systems designed to reduce ejection and improve protection in pole and rollover scenarios.

From a safety engineering point of view, this progress is entirely logical.

The problem is that these systems occupy physical space. They also require predictable deployment paths, trim packaging, sensor logic, and structural support. In many cars, the upper door opening has effectively been squeezed from above and from the side. The roof rail grows deeper. The headliner and trim become thicker. The side curtain airbag must deploy downward across the window area. The upper B-pillar and C-pillar structures become more substantial. The door opening is no longer simply a hole through which a person passes; it is now the edge of a highly engineered safety cell.

Again, none of this is wrong by itself.

But for the user, the experience can be very different. The person does not experience “FMVSS compliance” or “side pole performance” when entering the car. They experience whether their head hits the roof rail. They experience whether they have to fold their body awkwardly. They experience whether the upper aperture is generous or stingy. They experience whether the seat and floor relationship allows a natural movement or demands a controlled fall into the cabin.

This is where the industry often hides behind the language of safety. We say the structure is necessary. We say the airbags are necessary. We say the crash ratings are necessary. And they are.

But it does not follow that poor access is necessary.

It only means we have not prioritized access strongly enough during the design process.

The EV skateboard: brilliant for engineering, difficult for human packaging

The second major force reshaping access and egress is electrification.

The skateboard EV architecture is one of the most influential vehicle architectures of the modern era. Placing the battery pack flat under the floor has major advantages. It lowers the center of gravity, creates a stiff structural platform, frees up front and rear packaging opportunities, simplifies modularity, and allows different body styles to share the same basic architecture.

From an engineering and manufacturing point of view, it is extremely attractive.

From a human packaging point of view, it creates a serious challenge.

The battery has thickness. The enclosure has thickness. The cooling system, crash protection, mounting structure, and underbody protection all need space. The result is often a higher floor than an equivalent combustion vehicle. In an SUV, that may be partly hidden because the vehicle is already tall. In a sedan, liftback, or crossover-coupe, it becomes a real problem.

To maintain exterior styling and aerodynamic efficiency, designers may lower the roofline. To package the battery, engineers raise the floor. The seat then has to sit somewhere between the two. The occupant is squeezed vertically.

This is why some modern EVs feel oddly compromised inside despite having long wheelbases. The cabin may have excellent legroom on paper, but the posture may be poor. Rear passengers may sit with knees high because the floor is raised. The seat cushion may be thinner or lower relative to the floor. The hip angle may be less comfortable. Entry requires more careful head movement because the roof is low and the floor is high.

The exterior may suggest spaciousness. The interior experience may suggest otherwise.

Hybrids can suffer similar issues, especially when battery packs are placed under seats, behind seats, in the luggage area, or within existing platforms not originally designed for electrification. Packaging becomes a compromise layered on top of a compromise.

This is the danger of platform adaptation. When a vehicle architecture is asked to do too many things — combustion, hybrid, plug-in hybrid, full EV, front-wheel drive, all-wheel drive, multiple body styles — the human package can become the casualty.

The styling trap: lower roof, higher beltline, larger wheels

Safety and electrification are not the only causes. Styling has also played a role.

Over the past twenty years, the industry has become obsessed with visual stance. Larger wheels, lower rooflines, higher beltlines, smaller greenhouses, thicker pillars, more aggressive shoulder sections, and coupe-like profiles have become common across almost every segment.

Even family cars now try to look like sports cars. SUVs try to look like coupes. Electric sedans try to look like aero sculptures. MPVs disappeared in many markets because they were considered too practical, too honest, too unfashionable. The industry replaced them with crossovers that often look tougher but are not necessarily easier to use.

This has consequences.

A high beltline reduces the apparent height of the side glass, which may make the car look stronger but often reduces visibility. A low roof improves the visual profile and may help aerodynamics, but it reduces head clearance and the door opening. Larger wheels and higher body sides create a dramatic stance, but they can force greater step-in height or higher sill structures. A fast rear roofline looks dynamic, but it compromises rear-seat entry and headroom. A wide center console may look premium, but it reduces knee freedom. Thick door trims may feel luxurious and safe, but they narrow the entry path.

Modern design language often celebrates compression: narrow glass, heavy body, low roof, big wheel, strong shoulder. It photographs well. It sells the image of protection and performance.

But human beings do not enter a photograph. They enter a vehicle.

The more we design for the image, the more we risk designing against the body.

The forgotten user: not everyone is young, short, slim, and flexible

A major problem in automotive design is the persistence of the “default user.”

The default user is often imagined as reasonably young, able-bodied, flexible, neither particularly tall nor particularly large, and willing to adapt to the product. The industry may not say this openly, but many cars reveal it through their packaging.

The reality is different.

Populations are aging. Many people are taller than older package assumptions allowed. Many people are heavier. Many people have back, hip, knee, neck, or shoulder limitations. Many drivers and passengers are older but still active and independent. Many families need to load children, child seats, strollers, bags, mobility aids, pets, and elderly relatives. Many people wear winter clothing or work clothing. Many people do not have the physical agility to twist, duck, drop, and pivot into a tight opening.

This is not a niche problem. It is mainstream.

A vehicle that works only for the flexible middle of the population is not a universal product. It is a product that asks millions of people to compromise, struggle, or exclude themselves.

That is particularly unacceptable in premium vehicles. A premium car should not merely offer a large screen, soft materials, and impressive acceleration. It should offer ease. It should offer dignity. It should make the user feel considered.

If a customer paying a premium price has to fold their body awkwardly to enter the car, hit their head on the roof rail, squeeze past a thick B-pillar, step over a high sill, or climb around a raised battery floor, the product has failed at a basic level.

Access and egress are safety issues, not comfort details

The industry often treats ingress and egress as convenience topics. That is a mistake.

Access and egress are safety topics.

In normal use, poor entry and exit increase the risk of falls, head impacts, strained backs, twisted knees, and loss of balance. For older users or users with limited mobility, this is not trivial. A car that requires awkward movement may become unusable long before the powertrain or infotainment system becomes outdated.

In an accident, the stakes are higher.

A vehicle that is difficult to exit in normal conditions may be much more difficult to exit after a crash. Doors may be jammed. The vehicle may be tilted, damaged, underwater, against another object, or surrounded by debris. Occupants may be injured, disoriented, or unable to move normally. Emergency responders may need to access the cabin quickly. High sills, thick pillars, heavy doors, complex glazing, battery structures, and narrow apertures can all affect rescue and evacuation.

This does not mean modern cars are unsafe. It means safety must be defined more broadly.

Crash survival is not the only objective. Post-crash escape, extrication, rescue access, and user self-rescue matter as well. A five-star crash rating should not make us ignore whether real people can get out of the car after the event.

Designers and engineers need to treat “daily ingress” and “emergency egress” as connected problems. The same geometry that frustrates a user in a parking lot may become critical in a crash.

The rating problem: we optimize what we measure

One reason this imbalance has grown is simple: the industry optimizes what is measured.

Crash ratings are measured. CO₂ is measured. range is measured. drag coefficient is measured. cost is measured. weight is measured. production efficiency is measured. screen size is advertised. acceleration is advertised. battery capacity is advertised.

But how often do we see a serious public rating for ingress and egress?

How often does a vehicle review measure the effective door aperture at head height? How often does it compare the relationship between sill height, seat height, roof rail position, and steering wheel clearance? How often does it test entry and exit with a tall person, a shorter older person, a larger person, someone with limited hip movement, someone carrying a child, or someone using a walking aid?

Almost never.

Automotive media often mentions “easy to get in and out” casually, but rarely treats it as a major design metric. Manufacturers conduct ergonomic assessments internally, of course, but the public conversation remains weak. If something is not measured publicly, it becomes easier to compromise privately.

The result is predictable. Engineers fight for crash performance. Aerodynamicists fight for range. Finance fights for cost. Manufacturing fights for commonality. Marketing fights for visual impact. Digital teams fight for screens and features. Designers fight for stance and emotion.

Who fights for the doorway?

Often, not enough people.

How the cycle developed

The current situation did not happen because designers stopped caring. It happened because many rational pressures accumulated.

First, regulations and consumer safety tests became more demanding. This is positive, but it made the body structure and restraint system more complex.

Second, vehicles became heavier, especially with the rise of SUVs, crossovers, and EVs. Heavier vehicles demand stronger structures and create more severe crash compatibility challenges.

Third, EV architecture placed large battery packs under the floor. That created a vertical packaging burden, especially for cars that still needed a low, sleek silhouette.

Fourth, aerodynamic targets became more important for EV range. A lower roof, faster windshield, tapered rear, and reduced frontal area can help efficiency, but they often conflict with human access.

Fifth, design fashion moved toward coupe-like crossovers, high shoulders, and narrow glass. Visual excitement often won over practical openness.

Sixth, interior trends introduced larger consoles, thicker doors, more screens, and more perceived-luxury surfaces. These features can intrude into usable space.

Seventh, platforms became more global and more modular. A platform designed for many body types and markets can produce cost savings, but it may not be optimized for each specific human-use case.

Finally, the customer clinic process often rewards first impressions. A dramatic-looking car can win attention quickly. Ease of entry may only reveal its value after daily use, ownership, aging, injury, or family life.

This is how we ended up with cars that are technologically advanced but physically less welcoming.

Design has become too defensive

Modern cars often look defensive. High sides, small windows, thick pillars, narrow openings, armored surfacing, and elevated seating create a sense of protection. The customer may initially interpret this as safety.

But there is a difference between feeling protected and being well served.

A car should not feel like a bunker. It should feel like an intelligent extension of the human body. It should protect without imprisoning. It should be strong without being claustrophobic. It should be efficient without forcing the user into an awkward posture. It should be desirable without punishing the people who actually use it.

This is where design leadership matters.

The designer’s job is not only to make the car attractive. It is to defend the human experience against the accumulation of technical excuses.

Great design turns constraints into clarity. Poor design stacks constraints until the user pays the price.

The false opposition between beauty and usability

There is a dangerous assumption that good access requires ugly vehicles.

This is not true.

Some of the most beautiful cars in history were also honest about their package. The original Range Rover had clarity and upright functionality. Many classic wagons had elegant proportions and excellent access. The first-generation Audi TT was small but conceptually pure. The Citroën DS was aerodynamic, comfortable, and human-centered in ways still worth studying. The Renault Espace and early European MPVs were not sports cars, but they understood people. The original Mini was packaging genius. The Mercedes W124 had integrity in its relationship between exterior and interior. The Volvo estates were pragmatic but still iconic.

Usability does not kill design. Indifference kills design.

The problem today is not that practical cars are impossible to make attractive. The problem is that the industry often equates attractiveness with visual tension, low rooflines, giant wheels, and aggressive gestures. This narrows the design vocabulary.

There are other forms of beauty: clarity, generosity, intelligence, calmness, lightness, openness, and confidence.

An easy-to-enter car can be beautiful if the design team treats access as part of the aesthetic rather than as a compromise.

EVs should have made this better

There is an irony in the current EV era.

Electric vehicles should have opened up new packaging possibilities. Without a large combustion engine, transmission tunnel, exhaust system, fuel tank, and conventional drivetrain layout, designers had a chance to rethink the vehicle around people.

Some EVs have done this well. A flat floor can create useful cabin freedom. A shorter front overhang can improve space efficiency. A longer wheelbase can increase interior room. Digital controls can reduce mechanical clutter. Compact electric drive units can free up areas previously occupied by powertrain hardware.

But many EVs have not fully exploited this potential.

Instead, the industry often took the skateboard battery, placed a fashionable body on top, added a low roof for aerodynamics, and accepted the resulting compromise. The EV became a technology platform first and a human environment second.

This is backwards.

The EV revolution should not only be about propulsion. It should be about architecture. If we are changing the foundation of the vehicle, we should also improve the human relationship to the vehicle.

A new design brief: the inclusive vehicle

To break the cycle, the industry needs a new design brief. Not an afterthought. Not a checklist. A serious front-end requirement.

The next generation of vehicles should be designed around inclusive access from the beginning.

That means defining ingress and egress as key performance indicators, not subjective comments. It means measuring the usable entry envelope, not just the nominal door opening. It means considering the head path, shoulder path, hip movement, knee movement, foot swing, sill height, seat height, roof rail position, pillar intrusion, door thickness, steering wheel clearance, and floor height as one connected system.

It also means designing for a broader range of bodies.

A truly inclusive vehicle should consider tall users, short users, older users, larger users, users with limited mobility, users with children, users with temporary injuries, and users who may need to exit under stress. It should consider not only the driver, but all seating positions. Rear-seat access is often where modern design fails most clearly.

This is not charity. It is good business.

An aging population, larger body-size diversity, and longer active driving lives mean that access will become more important, not less. A brand that solves this elegantly can create a major competitive advantage.

What should change technically?

There are several ways to improve the situation without abandoning safety, EV performance, or design quality.

First, battery packs need more intelligent vertical packaging. Not every EV should blindly use the same full-floor skateboard height. Cell-to-pack, structural battery design, thinner packs, foot garages, localized battery modules, and more thoughtful underfloor zoning can improve occupant posture. Battery architecture should serve the cabin, not dominate it.

Second, the relationship between seat height and sill height must be reconsidered. A comfortable entry often comes when the seat is close to natural hip height and the sill is not too high or too wide. Many vehicles get this wrong by combining high sills with awkward seat positions.

Third, the upper door opening must become a protected design target. Safety systems and roof structures should be packaged around a required human entry envelope. Curtain airbags are necessary, but their packaging must become more elegant.

Fourth, door geometry matters. A longer door is not always better. The opening angle, hinge position, roof cut, B-pillar relationship, and seal design can make a major difference. Rear doors in particular often suffer from fashionable rooflines and wheel-arch intrusion.

Fifth, the rocker panel should not become an obstacle course. EV battery protection and side-impact structures often create wider and higher rockers. Designers and engineers need to minimize the step-over distance and improve the visual and physical entry path.

Sixth, interior architecture should be slimmed intelligently. Door trims, consoles, instrument panels, and seat bolsters should support entry rather than create barriers. Luxury does not need to mean thick.

Seventh, digital design tools should simulate access with many body types, not only standard mannequins. Motion capture, virtual human models, and ergonomic simulation can reveal problems early. But they must be used with the right targets and real human validation.

Eighth, emergency egress should be included in the package logic. How does an injured occupant exit? How does a rescuer access the cabin? What happens if the vehicle is on its side? What if the door cannot fully open? What if the battery pack area is damaged? These questions should influence design early, not only rescue documentation later.

What should change culturally?

The deeper change is cultural.

Design reviews should include access as a visible topic. Not hidden in an ergonomics report, but discussed at the same level as stance, surfacing, aero, and brand identity.

Executives should physically get into the cars — front seat, rear seat, passenger side, driver side — and not only the prototype prepared for presentation. They should do it in normal clothing, with real shoes, with a bag, with a child seat, with an older relative, with tall and large users present.

Design teams should invite diverse users into early clinics, not merely for interior color preferences but for physical interaction. The question should not be “Do you like the design?” but also “Can you live with it?”

Automotive media should begin testing access more seriously. A review that praises a car’s design while ignoring poor entry is incomplete. A vehicle can be beautiful and still fail as a human product.

Regulators and safety organizations should explore ways to include access, rescue, and egress in safety discussions. Crash protection has advanced tremendously because it is measured. If access and post-crash usability are never measured, they will remain vulnerable to compromise.

A possible new metric: Human Access Index

Perhaps the industry needs a simple public metric: a Human Access Index.

This would not replace crash ratings. It would complement them.

Such a metric could evaluate front and rear ingress, egress, door aperture, sill height and width, seat-to-floor relationship, head clearance during entry, elderly-user access, child-seat loading, visibility, emergency egress, and rescue accessibility.

It could be tested with multiple occupant profiles: tall, short, older, larger, limited-mobility, and child-seat use cases. The result would give customers a clearer understanding of whether a vehicle is genuinely usable.

This would also create competitive pressure. If one brand could advertise not only five-star crash safety and long EV range, but also best-in-class human access, others would follow.

That would be progress.

Designers must reclaim the package

The most important message is this: designers must reclaim the human package.

Modern vehicle design has become too fascinated with exterior drama and digital theatre. But the true art of car design is the relationship between the outside promise and the inside experience.

A beautiful car that is unpleasant to enter is not fully beautiful. A safe car that is difficult to escape is not fully safe. An advanced EV that compromises posture because of battery packaging is not fully advanced. A premium car that excludes larger, older, or less flexible users is not truly premium.

The challenge is not to reject technology. The challenge is to integrate it more intelligently.

Side airbags, roof structures, EV batteries, crash protection, aerodynamics, and digital systems are not enemies of design. They are design materials. But they must be shaped around the human being, not simply stacked around the human being.

The way forward: vehicles people want and can actually use

The next great leap in car design may be less spectacular than the industry expects.

It may not be gullwing doors, Level 5 autonomy, 1,000 horsepower, a curved cinema display, or a battery with another 100 kilometers of range.

It may be a vehicle that feels wonderful before it even moves.

A door that opens generously.

A roof rail that does not punish your head.

A sill that does not require a gymnastic step.

A seat that receives you naturally.

A floor that supports a comfortable posture.

A cabin that gives you light, visibility, and space.

A structure that protects you without trapping you.

A design that does not treat your body as an inconvenience.

This is not nostalgia. It is the future.

As cars become more electric, more intelligent, and more software-defined, the physical human interface becomes even more important. The screen can update. The software can improve. The battery chemistry can evolve. But the body opening, floor height, roofline, and seat position are locked into the architecture.

Get them wrong, and the car is wrong forever.

The industry has spent decades perfecting the balance between production technology, cost, safety, performance, packaging, ergonomics, and design. That balance is now under pressure. We should not accept its decline as inevitable.

The solution is not to go backwards. The solution is to design forwards with a broader understanding of the human being.

People should not have to adapt painfully to the car. The car should be designed intelligently around people.

That was always the promise of good car design.

It is time to return to it.