Final answer:
A car's odometer measures distance traveled, while its speedometer measures speed.
Step-by-step explanation:
A car's odometer measures distance traveled while its speedometer measures speed. Distance traveled refers to the total length of the path covered by the car, taking into account any changes in speed or direction. On the other hand, speed is the rate at which an object covers distance, and it is a scalar quantity as it only has magnitude but no direction.