I currently have my son's Crown Vic sitting on a frame made from four 4' 2x6s, two Harbor Freight pneumatic swivel casters, and two Harbor Freight pneumatic straight casters.
Our race team swapped from our trashed '95 BMW 3 series to a better shell, and we had to remove everything from the old car to swap over to the new shell. We built two frames to roll both shells around. Once we had the car stripped we had to go pick up the new shell from a team member's driveway, go back to the team captain's driveway and wheel the old shell out, then wheel the new shell in place. Finally we loaded the old shell onto the trailer and I brought it home to scrap it. Then I needed to part out my son's car, so I jacked the BMW shell up off the 2x6 frame and rolled the shell under my son's car before removing the front and rear suspension. I'd say the frame is at its max capacity, but it's working. Hopefully in the next week I can roll that car out and send it across the scales.
