I haven't driven a ZR-1 yet but I'm in the market for another car and figured that I would check out the ZO6. I was pretty sure that it would not be what I end up going with but I figured that it would be silly to never experience the car when I am in the market for another sports car. It does not hold a candle to the '08 viper. Not even close.
Have you ever thought about buying a TT or high hp blower car? Instead of just a 'supercar' get a modified supercar? One that has 200 or so extra hp more than the ZR1 and 08 Viper? One with better shocks, lightweight brakes, lsighweight wheels, premium exhaust, rollbar, Eibachs, etc.?
Might cause you to feel sorry for those poor guys with only stock supercars. You may enjoy the feeling that your car is faster than every single stock car on the road, including the Veyron.
Ted