Related Clues:

• Gridlock components
• Freeway fillers
• 35-Across and others
• Colts and Mustangs
• Cougars and Jaguars
• Road runners
• Lemons or cream puffs
• Lotful
• What some plants produce
• A lot may have lots
• Guys' chat topic
• Traffic, mostly
• Lincoln and Ford, e.g.
• Mercury and Saturn, but not Uranus
• Sedans, e.g.