If you're considering a .40 size mustang, I would recommend the WM version. It isn't as scale as the Kyosho (if you can still find it) as the Kyosho has printed panel lines and rivets, but it is of excellent quality and value. The kit includes retracts and is one of the fastest assembling mustang kits I know. A nice 70 ultimate would make any of the WM P-51's (including the Dago Red) a great flying warbird.