I've only driven my GEN III however I am thoroughly impressed with this machine. It does "learn" my driving style in a manner of speaking and pushing this car hard does make it faster, not in the car magizine stats but from a roll, it gives me many wide grins a week.
My major gripe is the transmission (replaced at 65,000 miles) due to how easily, at least mine, gets confused and seems to be in the wrong gear. My second complaint with the car is the suspension. Granted the car handles well, especially at high speeds, but given its potential, capable but not sports car good, it doesn't deserves so punishing a ride over small bumps. It seems SVT cars are always lauded for their great mix of handling and ride quality. I've always wished the SHO was SVT to help iron out it's rough spots, namely, the transmission and the suspension.
Everything else wrong with the car at its 76,000 miles is on par for any car at that age.
Despite such complaints, I simply adore my GEN III. I'm continually happy that I own so much of an automobile, and so rare of one at that, for the little sum of money I put into it.
This concur that this car is the essense of affordable stealth.
bests, dave m.