As you know, these little 65-66 Mustang coupe cars don't have a whole lot of room in them... if I wanted to run a 275/60-15 drag radial on a 15x12 wheel, can I keep a functional rear seat in there, or am I going to lose it?? I'm fully aware of the rear suspension modifications that will need to be done to make this fit, but I'd love to keep my back seat!! Do any of you classic Mustang owners have something pretty low with at least a 10" to 12" wide rear wheel and a back seat?? Thanks in advance...