Season 4

Eager to make some money, the team sets to work on two projects: creating a rat rod from scratch and converting an Elite Laser 917 into a racing car.

Shawn asks the team to set up a trade involving a '57 Chevy station wagon. They also get to work on an epic project: merging two cars.

Mark and Shawn visit a salvage yard hoping to trade in their recently finished '57 Chevy for some nice Detroit-made parts.

After losing money on a build, the Gotham crew gets back to doing what they do best by turning a 1954 Army ambulance into a blinged-out party bus.

A broker representing a wealthy client shows interest in the yet-to-be-sold concept car combo. Later, Caveman pitches the crew on a project for a pal.

The Gotham Garage crew sets out to turn a Lincoln Zephyr that's seen better days into something truly special for a high-profile car show.

While the crew cranks on the Zephyr, Shawn pitches Mark on a deal involving a 1957 Kenworth big rig, just like the one Mark's dad used to drive.

Pumped at the opportunity to be on the cover of a Speedway catalog, Mark and company pull out all the stops to get the Zephyr ready for its closeup.