Related Clues:

• Slot car, e.g.
• Cattle __
• Motor vehicle
• Roller coaster part
• Cream puff, perhaps
• Sedan or convertible
• Occasional beeper
• It must be tired to work
• Port or fare starter
• Skylark or Firebird
• Non-necessity in NYC
• Dragster
• Greyhound, for one
• It's tired
• It needs gas