I thought I would give it a shot after seeing everyone else do it. I purchased 2 of the Springers, one to mod. I used the wheels from a Cybertron Hardtop. Wheels do roll. Front wheels I sanded the post down to fit in the missile launcher then used Gorilla Glue to secure them in. I then chopped down the missiles to fit on the other side (not shown) I only took pics of the "Car" mode.