Every once in a while these cars come up in discussion but I don't think I've ever seen a real comparison done. Soooo, here's a few pics for the historians and the generally curious ...
mpc on left, original amt middle and revell on right
hoods: mpc, amt, revell
dashes: amt, mpc, revell
bodies/grilles: mpc, amt, revell
tails: mpc, amt, revell
The mpc body noted is currently badged as amt, available on any street corner you could name. Seems to be re-released every couple of years and is definitely underscale in all proportions. The original amt body was modified into the '70, then possibly a funny car shell but never reissued in original form. The revell kit was an '80s issue originally, reportedly copied from a 1/10 scale '70 wooden master used for the 1/24 monogram '70 boss 429 kit. Very well done kit but for the woebegone mess at the front