mask out the body of the car and anything u want changed
then just mess around with the HUE untill u like the colour.

by the way im a Corel kid, photoshops better but i never like the interface. too many windows

 

Maaan...the wheel falling off thing is really close to what happened to me a few years ago. I was travelling at about 75 mph on the highway, when I lost the rear left wheel, brake drum, assembly AND the axle shaft! I had sparks erupting from the rear as well...when I checked it out, my bearings had been fragged....luckily I found a junkyard that had the same year RX-7 and did the old presto-chango swap...back on the road.

 

Yeah, I bought wheels studs that are threaded on both ends and nuts to go on them. they just screw into the hub with a hex key in the end of the stud.