Freiburger and Finnegan cross a rusted 1971 Datsun 240Z with a Chevy 4.3L V6 and a turbo from a Ford Power Stroke Diesel to create the Rotsun. The guys expect the revived Rotsun to dominate in a nine-car autocross showdown.

The 1974 Chevy Muscle Truck is back with a twist: it's gonna become a true dual-sport ride for surf and turf, shedding its drag slicks for super swamper boggers and hitting the sand dunes, hard!