I practiced with the Viper yesterday and the car is sooo fast. Very high corner speeds, very responsive and you can put it anywhere.
Reacts to small changes so its easy to dial in.
Very easy to work on and strip down. (I have a clean car for a change)
The clutch is so easy to setup.
Once you start driving you cannot stop. It's so nice that drove the rear tires down to 66mm without realizing it.
This is a very fast fun car.