How much higher is it, generally?
In most comparisons of family vehicles, an SUV's chassis sits 50 to 100 millimeters higher than a sedan's. Urban SUVs like the Toyota RAV4 have a ground clearance of around 19 centimeters, significantly higher than sedans in the same class. However, some urban SUVs are designed with lower chassis to balance fuel economy and stability, narrowing the gap to 3–7 centimeters. Hardcore off-road vehicles have even higher chassis, with a difference that can range from 7 to 20 centimeters.
Why are the designs different?
Intended use dictates the height. SUVs need to handle complex road conditions; a higher chassis reduces the risk of underbody scrapes. Sedans are primarily driven on paved roads; a lower chassis lowers the center of gravity, enhancing driving stability and handling. Chassis height directly affects a vehicle's off-road capability and comfort: too high, and the car may sway in corners; too low, and it risks bottoming out.
How should I choose?
Don't just look at the numbers; consider how you'll use the vehicle. If you frequently drive on rough roads or climb over curbs, an SUV's high chassis offers a distinct advantage. If you mainly commute in the city and prioritize a smooth, comfortable ride, a sedan's lower chassis is more suitable. Some SUV models have ground clearance comparable to sedans, so it is important to check the specific specifications when choosing a vehicle.