It’s the best Mustang ever built. Full stop. The flat-plane crank V8 revs up like a Suzuki GSX-R motorcycle, and drops rpms just as fast. Pushing the red start button brings out a medium-sized rev that you might think is loud—until you actually get into the throttle, then it’s all thunder and lightning. On abrupt lift offs it rumbles first, and then crackles like a stun gun. Ford says the engine only makes max torque at 7,500, but the curve feels flat and wide after about 2,500. At full throttle the GT350 screams until you hit redline, which is way, way farther away than it seems. See, your mind and ears get tuned to what a car sounds like when it’s ready to shift, which usually happens around 6,250 rpm, but in the GT350 you have another 2,000 rpms to go.