Description from the publisher:
The Thunder Alley: Crew Chief Expansion brings Thunder Alley to a new level of play by enabling players to set Crew Chief strategies in each segment of the game.
This expansion introduces optional rules, star drivers, season play, Crew Chief Cards and Track Cards all allowing players more control and more strategy in each game.
Call the right strategies and you may find yourself in Victory Lane.
The Thunder Alley: Crew Chief Expansion consists of eight 12-card decks of Crew Chief Cards (one for each player), 4 Lap Cards to extend the length of any race, 24 Track Cards with special rules and special scoring to make each race a new experience and a rule book with numerous modules to allow for variations in your play.