It's a real pain to move around a race or old car in your shop. They are hard to move by yourself, or you have to get out a floor jack, left each end and put dollies under each wheel.
The 6200 model is good to 13" wide, 36" tall and 1550 lbs. each. We recommend the strage rack to keep you invest up off the floor and organized when not in use. Sold each.