First domestic I've owned in 20 years, love it! Build quality is superior, paint rivals any other mfg in the world! I have a base model with one option: 3.73 axle upgrade. Very comfortable, love the engine sound tube into the interior, good economy considering 315 HP. I do lots of track days and it's very well balanced but quite underdamped, needs more shock damping. I've driven the "Track Pak" suspension on-track and it's worth the money, much better body control during cornering. Only other complaint is the seat, not supportive for sporty driving and the lower cushion gets uncomfortable after 2 hours.
Favorites: excellent balance on the track, very little understeer (but needs better damping in the shocks), great power, solid brakes, first Mustang with Stability Control (great safety feature) and can be turned completely off for track driving. Love the styling, capless fuel filler, very quite too
Better shocks on base car's suspension! Make "Track Pak" standard! Better seats, more comfort and lateral support!