I scrapped the 67', and redesigned it to be wider and taller.

I redesigned the axles to be longer, so the wheels could sit on the outside of the car for stability.

The trunk I'd created was not aerodynamic, so I filleted it to push the air slightly in, and then out.

The air from the trunk fillets will get pushed onto the fin I'd created, creating downforce in the back of the car.

I filleted out the bumper and headlights, so they served an aerodynamic purpose pushing the air out.

The Low - Rider style pushes air under the car, and out to the side.

Still a Low - Rider, the car was much more Aerodynamic after adding the engine and filleting the trunk / bumper.