There are a few lone wolf racers in the Known Wasteland, among them Redding Rexicus, aka Red Rex. As are most of the lone wolves, Red is his own crew chief, mechanic and driver.
This '49 Merc model is by M2 Machines. I added another exhaust stack (I just like the look a lot) out of the engine. Since the Red Merc has no support vehicles (or wagons or pack animals), it carries all of its own baggage as well a few spare parts, made with green stuff, brass and copper wire and a couple spare parts stripped from spare engines.
Saint Chevro's Corvette
This '55 Corvette is modeled with baggage showing the car as it would look traveling between races. It is armed with three .30 Brownings on the hood (in the Machinas rules, these guns could be counted as either Twin .50s or Fixed Forward Guns.)
I removed the windshield to flatten the car's profile out a touch (though the baggage quickly unstreamlined that idea). I also added a brass exhaust pipe on the right side of the car.
This car is from Hot Wheels' Boulevard line. One thing that I had a slight problem with was the rear wheels which were set too close to the quarterpanels resulting in the tires scraping against the panels. I removed the chassis from the body and set in a small amount of green stuff to raise the rear end just enough to clear the tires.