Related Clues:

• Michelins
• Auto's four
• Brad Paisley "Mud on the ___"
• Tour van might need snow ones
• Things in trunks
• Golf cart foursome
• Tromps (on)
• Focus quartet
• They leave tracks for studies to follow? True!
• Retreads, e.g
• Bald tires' lack
• Parts of shoes or tires
• Becomes exhausted
• Car's four
• Spares, maybe