Related Clues:

• Wankel's creation
• It may purr
• It's under the hood
• It might be found in a stall
• Place for Detroit pistons?
• Detroit pistons are here
• It's a driving force
• Diesel invention
• Van driver
• It's often under a hood
• It could stall
• Car starter
• Firefighter's vehicle
• Train puller
• Driver