Aaron has the guys build a '55 Chevy for the Barrett-Jackson auction.
Problems with the '55 Chevy may prevent Richard from going to auction.
Aaron bets Richard he can finish a 1980 El Camino faster than anticipated.
Aaron's bet that he can finish the 1980 El Camino quickly is jeopardized.
Aaron helps the guys start on a '65 Volkswagen Beetle before vacation.
Richard has the guys take on a vomit green '74 Mercury Comet.
The guys are on their own after Aaron quits his job at Gas Monkey.
Aaron struggles to get his BMW ready for a race against the Street Outlaws.