"And what did the original GT40 look like? A muscle car."

i would suggest you take a better look at some older muscle cars, because I dont see very much simularity between a GT40 and a Camaro, Chevelle, or even a Cuda. not to mention the design differences where all muscle cars had huge big block motors, usually anything from a 427 to a 454 and were all front engine vehicles, whereas the GT40 is a mid engine car that had a 4.2 litre engine, in orginal use and a 4.7 litre which was used around 66 & 67.For those who can't do the math is 256 and 289 cid respectively
I apologize for ranting and raving but saying a gt40 is a muscle car is like saying a honda is in the same league as a viper