I did this for a GOOD friend of mine. I used the HotWheels '58 Impala and the rear top part of the panel area from the HotWheels '56 Ford Panel. I used a screw from the under side of the Impala to attach the part from the Ford. Then I used a little bit of J.B. Weld to mold them together. I cut the hole in the hood for the motor, narrowed the rear end, added a set of rubber tires and chrome mags................... When my Buddy asked me to build him something different, I asked what color? He said, whatever. OK, he got whatever. To this day, I really don't like how the paint design came out, but my buddy does, and I guess that's what matters.............................. I also added the decals on the sides by the doors and on the rear...........................