I take another glance at the current car we're working on, an early '70s Plymouth Fury. It's another behemoth of a car, two tons of full-size Detroit steel. "I really don't want to use this to tow a car that hefty all the way back through the sand," I reply, thumping the steering wheel of the Trailduster with an open palm. "I know that Fury runs; I drove it back here."