This Mach 1 is an early, very rare high performance "Drag Pack" version of the Ford Mustang. The Mach 1 was available with no less than 7 different engine options. The most powerful engine option was the 428 Big Block Super Cobra Jet Ram Air engine. 

• Transmission: 4 speed manual with a V-Code 3.91 traction-lok differential
• Wheels: power front disc brakes
• In 1969, Ford sold 72,458 Mach 1 Mustangs