Related Clues:

• Tour de France participant
• Marathon entrant
• One running on a track, maybe
• Drag-race car
• One making a pit stop, maybe
• Modified wheels
• Indy auto
• Track competitor
• Indy 500 entrant
• Slot car, e.g.
• Drag performer?
• Greyhound, for one
• "American Graffiti" car
• Dragster's ride
• He sits in a lot of laps