I raced one of the challenger srt8 392's today. Didn't really even know what it was when I came up to it, had to google it when I got home. I got the take on him at the start but after that I was history. It looked like he had the automatic transmission but wasn't sure. When I googled it says there running 470HP, so I really didn't feel to bad when he beat me. Look out if I ever get that supercharger. When I googled it says there weight is 4200 lbs, it looked like a heavy beast with a big engine.