Both vehicles typically feature a combustion engine — some models do feature electric engines instead, but these are intended for light duty use only — and both feature significant suspension and aggressive tires. They also generally feature a low center of gravity for added stability over rough terrain. The differences between an ATV and a UTV become clear with a simple glance at the rider positions: an ATV rider will straddle the vehicle on a saddle, while UTV riders can sit on side by side on bench seats or bucket seats.