Ford has finally released details on its upcoming Ford Mustang Mach 1, the top-tier, naturally-aspirated 5.0-litre V8 newest addition in the lineup, with much of its DNA coming from the high-power Shelby GT350 and GT500. The heart of the 2021 Mach 1 will be a 5.0-litre with 480hp and 420 lb.-ft. of torque, a jump of 20hp over the Mustang GT and the same power as the outgoing Bullitt model. It gets that extra power using a Shelby intake manifold, oil filter adapter and engine oil cooler, which increases engine oil cooling capacity by 50 percent. Available transmissions will be a Shelby-sourced six-speed manual (complete with cue ball shifter and rev-matching) or a 10-speed automatic with a more rugged torque converter. Both transmissions get extra cooling heat exchangers, while the differential also gets its own cooling system, like the GT500. The Mach 1 name first appeared in 1969, again as the top performer of the base V8s, coming in just under the Shelby and Boss variants and featuring a slightly improved suspension. The name also crept over to the Mustang II in 1974 before being discontinued in 1978. It made one final appearance for 2003 and 04, powered by a 302hp, 4.6-liter V8.As the Shelby GT350 is also being discontinued this year, only the Shelby GT500, with its 760-hp, 5.2-litre supercharged V8, will overshadow the Mach 1 in the Mustang lineup. Ford claims the Mach 1 will be the most track-capable 5.0-litre Mustang, so the suspension has undergone major upgrades over the GT as well. Every Mach 1 comes standard with MagneRide magnetorheological dampers, stiffer front and rear sway bars, front and rear sub frames from the GT350 with stiffer bushings, and a brake booster from the Mustang GT Performance Pack Level 2. New 19in x 9.5in, and 19in x 10in five-spoke Tarnished Dark-painted aluminum wheels are standard. Ford agrees to airbag recalls nationwide Aerodynamics have also gone through the track wringer and in base form the Mach 1 gets 22 percent more down force than a Mustang GT with Performance Pack Level 1. The lower front grilles are right from the GT500, cooling either engine or transmission. Underneath, the belly pan extends 20 inches further rearward than the GT Performance pack, features large wings for extra down force as well as airfoils that help cool the brakes.