[Mark IV]

Among the items mentioned:

* Stainless brake flex lines have been standard for many years now
* Current differential is a ZF, 3.46 ratio with limited slip
* Parking brakes are now integrated in the Wilwood calipers and work well. Yes, the driveline type park brake was a bit problematic
* There have been numerous upgrades in the electrical system over the years as well as improvements in the heater/defroster/vent system