Which car is better and faster a 1967-1973 muscle car or a 2007 ford mustang gt?
If only for the advances in tire technology, the 07 GT is the vastly superior car.
Assuming both cars are running on modern tires, the vintage muscle car might be better in a quarter mile drag race (some of those things were pumped up to well over 500HP), but the minute you need to stop or turn, the modern Mustang will annihilate the old stuff. Ditto for top speed: the better suspension and aerodynamics on the new 'stang will crush the old machines for top speed (and handling at very high speed).
Which is cooler, however, is open to debate. It's hard not to just grin evilly when you see a mint-condition old hemi 'cuda, Camaro SS or Shelby GT. Personally, I'd rather have the beautiful old retro ride than a modern car that might be far faster: A 70's Mach 1 is way, way cooler than a 2010 Nissan 370Z, even though it wouldn't have a prayer if they raced each other.