After reading all the way through this thread there are a few misconceptions I wish to clear up. 1) Mustangs and Camaros are Âpony carsÂ not muscle cars. 2) Nothing with a 3.8L engine is a muscle car. 3) True muscle cars have large horse power, large displacement engines from the factory. (ie 425HP, 426ci Hemi with 490 ft lbs of torque) 4) Turbo vs Blower: A turbo is a forced induction via a centrifugal pump powered by exhaust gasses. A supercharger (or blower) is forced induction via a gear pump driven mechanically. Gear pumps can generate more pressure and flow at lower RPMs making them suitable for large, low revving V8s. Centrifugal pumps (turbo) are much more efficient and generate more pressure and flow at higher RPMs, making them suitable for smaller, high revving 4 cylinders. USE WHICH EVER IS APPROPRIATE. 5) The 6 speed transmission will definitely help performance with a lower torque engine but driving it every day in city traffic will be a pain. 6) A car with 425 HP and 460 ft lbs of torque does not need more then 4 gears to accelerate down a quarter mile.