Related Clues:
- Trucks in convoys
- Rigs in rest areas
- Four people might compete in them
- Teamsters' rigs
- Rest area array
- Ones in it for the long haul
- Important packs provided, round near the end
- Their winners go to the finals
- Penultimate tourney round
- Four-team tourney round
- ... when involved in ground-breaking match
- Finals' preceders, in a tourney
- Rounds of four
- Round with four teams, say
- Important test at a big rig driving school?