My choice is the 1967 Shelby Mustang GT500
428 cid, dual Holley four-barrel 600cfm carbs, 10.5:1 compression ratio
Max BHP - 355 bhp @ 5,400rpm
Max Torque - 420 lbs.-ft @ 3,200rpm
0-60mph in 4.8 secs
¼ mile in 13.6 secs @ 106 mph
Absolutely beautiful car.
Honourable mentions to the 1967 GT350, 1969 Mach 1, and the 69-70 Boss 302.