Like everything else it comes down to driver, but I don't believe that test! It was by far the slowest I have seen a Z06 tested. I have owned many, many vipers including the first successful supercharged one done by Jason Heffner and I am a fan of the viper although I don't think its nearly as refined a car as the Z06 with its alum frame and so forth and I feel they were unfair with the Z06. I also own a Z06, an 06 with about 1500 miles on it, in another thread on this site DBK posted a couple video's of my GT running some 1/4 miles, on that exact same track the day before my bone, stone stock Z06 ran 11.28 at 127.2 and 11.20 at 127.6 on my only 2 pass's. If you scroll up and look at one of the video's DBK posted of my GT I was running a guy in a new Z06, the guy I was running was driving his sons car for the first time and it was his first pass ever in the car and he was 71 years old!!! He ran like an 11.7 at 126 and they could only get 122 out of theirs in the test??? For me the Ford GT is the most awesome all around beautiful rolling artwork of a car I have ever seen, performance, looks #1 (FOR ME!). But the quickest factory stock car I have ever driven by a long shot is the Z06 and when they start building the new Viper I want someone to bring one out bone stock and drive it around my Z06! It ain't gonna happen!