I'm lovin the Viper, it really shows alot of atmosphere, and it gives it the all american grunt look, it's definatly one of the best Viper Pics i have seen, the back ground car looks phot realistic, and the lighting is perfect for a rain storm, and it's just my kind of pic, one thing that caught was the fron left rim the only visible one, it seemed it need more motion blur, but if you do that it looks liek you were there at a track. But if you wanted to make it look like it was taken with a camera, make it look like theres rain drops on the lens, i don't know if you want to make it that detailed, but it would be killer eye candy.
Peace out, Yoda