The SE to SVT transformation is very substantial. Apart from the obvious stuff under the hood (LIM, UIM, cams, pistons, ECM programming, MAF, air filter, etc), the wheels, tires, suspension, anti-roll bars, front disc brakes, front and rear fascias, exhaust (quasi-dual instead of single), side skirts, front grille, front and rear seats, and gauges are all different.
I believe even the ABS has a different calibration, and may even be a different manufacturer (SVT is 4 channel Bosch -- similar to BMW). I remember a thread about ABS/EBD/Traction Control and we weren't sure if the regular Contours had a different brand of ABS system.
Kerry
