Some of the differences:
Larger front brakes
ABS standard
Dacromat finish on all four brake rotors
Different spring rates and sway bars
Different front strut valving on late 98 and newer
16" wheels and Z rated tires
Unique interior with perferated leather seats
Different clutch and flywheel
Additional 25 to 30 HP (depending on year)
Improved engine air intake with cone type filter
Larger throttle body (same size as 3.0 Duratec)
Extrude honed intake manifold and intake ports in heads
Hotter cams
Different pistons with higher compression
Quasi dual exhaust
Body kit ground effects