At chrysler when a new car was born, it's body code came from some kind of a corporate code book. Well we didn't know anything about that kind of stuff on the Viper team, we just did what made sense and had some fun with it. A number of us on the team were jet freaks as well as car freaks and our favorite jet was the Blackbird recon jet developed by the Lockheed skunkworks under the direction of the famous kelly Johnson. Well when we needed a body code, we said let's use SR in honor of our favorite jet. Afterall, we were building the world's most outrageous car, why not use the designation of the world's most outrageous jet? as it was, our team was patterned after Kelly's skunkworks and we used alot of his rules when we first got going.