Related Clues:

• Road runners?
• Detroit products
• Mercury and Saturn, for instance
• Traffic
• Bumper ___
• They're always tired
• Theme of the puzzle
• Lot sights
• They stay in a lot
• Jam ingredients?
• Pullman and passenger, for two
• Railway units
• Lincoln and Ford
• Elevator cages
• 'Shake It Up' band, with 'the'