Option A
Sedan
The low-slung classic with a familiar driving position.
Best for: Drivers who prefer a sporty, planted feel and do not struggle significantly with bending or lowering themselves into a seat.
Option B
SUV
The elevated alternative with a commanding, upright seating posture.
Best for: Drivers with hip, knee, or back stiffness who benefit from stepping into a vehicle rather than lowering down into one.
Why Body Style Matters More Than You Might Think
When older drivers evaluate a new vehicle, fuel economy and technology features often dominate the conversation. But for the millions of Americans over 65 who live with arthritis, hip replacements, or reduced lumbar flexibility, the physical act of getting in and out of a car may be the most consequential factor of all.
Body style — specifically seat height, door geometry, and cabin volume — determines how much physical work your joints perform every single day. Over months and years of ownership, those repeated micro-stresses add up. Choosing the right configuration from the outset can meaningfully reduce strain and extend driving independence.
For a broader look at ergonomic design elements beyond body style, see our guide to vehicle features that reduce physical strain.
| Criterion | Sedan | SUV / Crossover |
|---|---|---|
| Typical seat height | 18–21 inches | 22–28 inches |
| Hip/knee flexion on entry | Greater bend required | More neutral angle |
| Step-up challenge | Minimal | Moderate to significant |
| Cabin headroom | Typically lower roofline | Generally taller cabin |
| Door opening width | Varies; often narrower | Often wider aperture |
| Cargo access | Lower trunk, more bending | Higher lift gate, easier reach |
| Visibility from seat | Lower driving position | Elevated, commanding view |
| Running board availability | Rarely available | Common factory or aftermarket |
The Core Ergonomic Difference: Seat Height
The most documented ergonomic distinction between sedans and SUVs is seat height. Traditional sedans position occupants roughly 18–21 inches from the ground. Most mid-size SUVs and crossovers seat occupants 22–28 inches up, with full-size body-on-frame SUVs sitting even higher.
For someone with healthy joints, those few inches are inconsequential. For someone managing osteoarthritis in the knees or recovering from a hip procedure, however, the difference can be significant. A lower sedan seat requires greater hip and knee flexion to descend into — and substantial quad and glute engagement to push back up. An elevated SUV seat, by contrast, allows a more neutral bend angle and reduces the muscular effort needed to rise.
54 million+
US adults with diagnosed arthritis
According to the Centers for Disease Control and Prevention, arthritis is among the most common causes of disability in American adults, making joint-friendly vehicle design a pressing priority.
~4 inches
Average seat height difference between sedans and mid-size SUVs
Automotive ergonomics research generally places this gap at three to five inches, enough to measurably change the degree of hip flexion required during vehicle entry.
That said, very tall SUVs introduce their own challenge: the step-up. If a vehicle's door sill is too high, drivers must lift their leading leg substantially, which can stress the hip flexors and strain the lower back. Compact crossover SUVs — which occupy the middle ground — often avoid both extremes.
For practical strategies on managing vehicle entry and exit, our article getting in and out of the car with less strain covers grab handles, swivel cushions, and other mobility aids in detail.
Beyond Seat Height: Other Factors That Affect Joint Comfort
Seat height is the headline figure, but several other design variables shape day-to-day comfort for older drivers:
- Door opening angle: Wide-swinging doors reduce the body rotation needed to enter and exit. Some sedans have narrower door apertures than crossovers, forcing more trunk twisting.
- Seat bolster firmness: Heavily bolstered sport seats grip the thighs tightly, which can irritate hip joints. Look for flatter, well-cushioned seat surfaces with firm but yielding lumbar support.
- Headroom and cabin volume: Taller cabin roofs — more common in SUVs — allow occupants to keep their spine straighter during entry rather than ducking.
- Steering column adjustability: A telescoping and tilting steering column lets drivers position the wheel for a relaxed arm posture, reducing shoulder fatigue.
- Running boards and grab handles: These aftermarket or factory-fitted aids can partially offset a vehicle's height disadvantage, either upward or downward.
These considerations apply regardless of body style and are worth evaluating on any specific vehicle you test-drive. For a comparison spanning three body styles including hatchbacks, see sedan, hatchback, or small SUV — which works for seniors on a budget.
The Crossover Sweet Spot
Compact crossover SUVs — vehicles built on car platforms but styled and packaged like small SUVs — often land at seat heights of 22–24 inches. This range is frequently cited by occupational therapists as accessible for a wide range of mobility profiles. If you find traditional sedans too low and full-size SUVs too tall, a compact crossover is a logical starting point for your test-drive list.
Making the Right Call for Your Joints
Neither sedans nor SUVs win this comparison outright. The right answer is specific to your body, your mobility history, and the particular vehicles you are considering. Before committing, take a focused test-drive with joint health in mind: enter and exit the vehicle at least four times, sit in the back seat if you'll carry passengers, and pay attention to any twisting, bending, or step-up that causes discomfort.
If you are navigating budget alongside these ergonomic priorities, our affordable senior cars hub covers how to identify vehicles that balance cost and comfort. For those still weighing ownership arrangements, leasing vs. buying for older drivers addresses how term length and flexibility factor into long-term planning.
For an updated look at how newer model-year vehicles compare in these dimensions, SUVs vs. sedans among new models for older drivers provides a current model-focused review.
This article provides general information about vehicle ergonomics for educational purposes. It does not constitute medical or therapeutic advice. If you have specific joint conditions or recent surgeries, consult your physician or a physical therapist before making a vehicle decision.
The content on this site is for informational purposes only and is not a substitute for professional advice. Always consult a qualified professional for guidance specific to your situation.

