Hey mate, it happened to me in 1989. I bought a baby blue 72 sedan from my cuz that was all original for $700.00 then I traded it for a 1980 toyota starlet. I ended getting back my sedan in 1993 from a neihbor. I didn't even know it was the one I had because it was painted dark blue, with fiberglass doors,front and trunk. It also had roll bars inside with only the front seats and a rx-7 rear end with disk brakes. They swapped the original A12 for a A15 with all the goodies. It was running 12's in a qtr mile with NOS. But when I got it, I put it street legal. I had to sell it because My ex was pregnat and I needed a family car :( Dam I miss that car !!!