I use this one for my GTs:
http://www.amainhobbies.com/product_...g-Exposed-Wing
Its only for the car but I dont have to take anything apart just to fit it inside. I has extra room for tires and some other stuff. Another plus is that it is leak proof so no oil or dirt can get out to your cars interior.
I have used it with DM1, GT2s, Cobra, SC8, etc. Any 1/8 GT will fit inside with wheels and body on.