Related Clues:

• One is in there on track
• The motor that's fast about the motor in reverse
• It gets a lift in the pit
• Derby entrant
• Something speeding back and forth?
• It's kept on track, hopefully
• One on the fast track
• Indy car, e.g
• Thin-bodied snake
• One active in the heat?
• Speedy one in Rolls-Royce?
• Relay entrant
• Winner in posh car, no slouch
• One could be champion in a good car
• One who get moving with King-Ace-King