As Richard heads to Houston to check out Gas Monkey's top fuel NHRA dragster do some racing, the Monkeys need to do some racing of their own to finish a custom lowrider paint job on the '78 Cutlass in time for the car's debut.

Richard and Aaron decide bigger is better, giving a red '67 Cadillac convertible the luxury treatment in a risky bid to attract a higher caliber of buyers.

With a big time buyer already on the way, engine and upholstery problems threaten to derail Richard and Aaron's red '67 Cadillac convertible.

When Richard brings a smashed up 2005 Ford GT back to the shop with the intention of making a quick repair for a fast profit, Aaron talks him into giving it the full Gas Monkey treatment.

As work on a smashed up 2005 Ford GT continues, Richard heads to Indiana to try to sell a Shelby Cobra prop car used in the superhero movie Iron Man.

When Richard receives a drag race challenge from a couple of internet upstarts, he changes his plans on his '67 Dart build to transform it into the ultimate dragster.

With engine problems on the Dart threatening to stop their big race with Roadkill before it starts, Richard and Aaron could face epic humiliation in front of millions of fans.

Richard buys a '32 5 window Ford Coupe planning for an easy build for the Monkeys while Aaron is away racing at Pikes Peak, but fate and fortune have other ideas.

The '32 5 window Ford Coupe Richard bought as an easy build for the Monkeys continues giving them problems, as weather and car issues threaten to derail Aaron's trip to Pike's Peak.

When Richard's '29 Packard receives an invitation to the fabled Concours d'Elegance at Pebble Beach, he challenges the Monkeys to a motorcycle build off to keep them busy while he's away.

While Richard takes his '29 Packard to compete at the elite Concours d'Elegance at Pebble Beach, the Monkeys race to complete their motorcycles in their big build off.

Auction fever hits the garage as the Monkeys have less than a week to build a '69 Riveria to sell at the Leake Auction along with motorcycles from their big chopper build off to determine who will win Richard's big prize.