Vehicle measurements such as height, length and width are important if the parking space for the new vehicle is in a narrow garage or the owner frequently parks in areas with low clearance. The vehicle width is the space between its widest points but does not include the mirrors. Even with them folded in, cars usually are a few inches wider than the stated width.
The vehicle headroom is the distance from the top of the seat to the inside roof of the car. On vehicles with adjustable seats, manufacturers list a range for headroom. This space determines if a tall driver is able to sit up straight when operating the vehicle or has to slouch, which impacts his overall comfort. Legroom and hip room are other measurements that affect driver comfort. The wheelbase is the distance between the centers of the front and rear wheels, which is roughly the length of the passenger compartment of cars.
Cargo volume, in cubic feet, determines the amount of luggage or other items that fit in the trunk. On cars with fold-down rear seats, the manufacturer often gives two values for cargo space; one with the seats up and the other with them down.
A vehicle's turning radius measures its tightest u-turn. In residential areas where vehicles must maneuver through tight turns, vehicles with smaller turning radii are easier to maneuver.