195/200 hp v-6 with extrude-honed manifolds, hotter cams, better heads, hand picked cranks, bigger throttle bodies and intake tube, lighter flywheel, better clutch (I think), dual exhaust
Better suspension (bigger sway bars, ect...)
Bigger brakes
Bigger wheels
Body kit
White faced gauges with 160mph speedo
Perforated leather seats in midnight blue (svt only) or tan
Rear seats are bucket style
Different (and better) electric window switches in driver's door
Need more? I think just the extras above justify the difference in price not even considering the limited production numbers.