Related Clues:
- Mercury and Saturn, e.g.
- Travelers' aids
- They get into jams
- Some library tomes
- Gridlock components
- Books that may display where and tear?
- Freeway fillers
- Road runners
- Lemons or cream puffs
- They have scales
- World records?
- World views?
- Sedans, e.g.
- They get people into jams
- They create carbon monoxide