Say goodbye to the bus. Which team will dominate? Watch Avalanche, Shelby and Corvette in the season finale of Bullrun. Airs this Thursday, April 30th at 10pm ET, only on SPEED! Live chat with cast members during the episode: http://www.speedtv.com/programs/bullrun/bullrun-chat/ Follow Bullrun on Twitter: http://www.twitter.com/BullrunOnSpee...