I'm Pontiac through and through, but those Vipers can be quick. Here is a video of my friends Viper.
http://www.youtube.com/watch?v=eGT3qJ1DurI It is not stock, but warmed up to current ACR output. Sticky tires and a little nitrous really wakes those things up. In the video, you can hear his clutch slipping all the way through first gear. LOOK at the MPH... Much more potential there with a better clutch. I went down the track with him w/out nitrous at 11.9, both of us are not small (I'm 250 lbs.). Its very reliable too, just went 250 miles one way to a car show in KY. 6 mpg on the street, 26 mpg on the highway! Very comfortable once you shoe-horn yourself into it. I could not believe all of the cell phones popping out to take pictures along the way.