Related Clues:
- Some big engines
- Sports car options
- Certain engines
- Types of trains or trucks
- Liquid slides, conserving energy in such machines
- Some Volkswagen Rabbit engines
- Many truck engines
- Many big rig engines
- Forced-induction engines, for short
- Some trucks or engines
- Some muscle car engines
- Some trains in the Thomas the Tank Engine universe
- Common auto engines
- Truck engines, often
- Some powerful engines