If your a fan of the Rat Rod genre of racing, look no further than Welderup Las Vegas, a shop so crazy it has its own show on the Discovery channel. In this video you can check out their wild Caterpillar, named for the full sized CAT diesel engine. Created by the owner Steve Darnell, the Caterpillar Rat Rod even has a pair of tracks where the back wheels should be. Take a sneak peak at this car before it makes its public debut in season 2 of Vegas Rat Rods on the Discovery channel.
