Related Clues:

• Certain models
• Final Four contests, for short
• Highway heavyweights
• Ends of 20- and 57-Across and 11- and 34-Down
• Highway rigs
• Tractor trailers
• Road runners
• Huge haulers
• Highway haulers
• Long haulers
• Final Four matchups
• Assembly-line products
• Jam units
• Final preceders
• There are lots on lots