Fury Road Mechanic Cameron Maxwell talks about the Interceptor on Facebook recently
I myself was asked to work on the film as I was known to have had a lot to do with falcon hardtops and mad max replicas and muscle cars in general. So I got the job of handling the "muscle cars" inc the 5 falcon coupes, 2 valiant chargers and the U.S. Charger (plus a couple of others).
I took an active roll in helping choose which cars were bought where possible.
Of the falcon hardtops I personally supplied two of my own (both were built as the bare metal version of the interceptor). One was my drag car which had been substantially modified many years earlier and was unlikely to ever see the road again. The other car was quite rusty and needed extensive repairs to be restored (both 1/4s were dented badly and it had a huge aftermarket sunroof). I won't waffle on about every car here but similar story for many of them.
Plus every possible unused part from the Falcons was removed and taken home to help restore other cars. I can assure you there was almost no savable parts left.
3 of the 5 Falcons survived and returned to Australia. The other 2 were completely destroyed during filming so there was nothing left to come home (though did offer to buy the wrecks).
Virtually any car bought were possible was a rough example to start with, there was several reasons for that. 1)no point wasting money on a prime example just to wreck it 2)the cars needed to look weathered and worn so buying cars that were already rough saved time and looked more authentic. 3)we were conscious that people would be up in arms about destroying classics so we tried to minimize the loss to ensure the fans enjoyed the film more and didn't have to cringe too much at seeing classics destroyed.