Related Clues:

• Car motor
• Purrer
• Object of a tuneup
• Wankel's wonder
• V-8, e.g.
• Glider's lack
• Train head
• Web search aid
• Web search tool
• It's exhausted
• Caboose's opposite
• ''I think I can, I think I can'' speaker
• It turns over before it runs
• It typically has lots of horses
• You might give this a gun