Color experimentations are cool.
The first is just an average picture that's purple. I can see the speed and that the car is turning hard, but it's not exemplary. It's alright.
I dig #2 because it's wide open, calm, and it makes me feel good. Even in that horrendous yellow. It resembles Div's pics to much, with the yellow gradient. It's Div that does that, right? I like the tiny car in the corner, that reminds me of older Hummer photos where they'd show an awesome, calm, serene scenery picture of the desert or something, and there the H1 would sit, in the middle or on the side, really distant and just kind of hanging out. I liked those photos. The MR2 obviously isn't just sitting there, but it has the spirit. I like how the car appears black, along with the rubber marks on the track, and they really stand out.
Holy crap, I though Christmas psased? Number 3 is really red and green, but it looks different. I like the two colors mixed together; it's something you don't see often and it just looks neat. I don't really like the picture as a whole, though.
I like the fourth shot a lot more than the latter, just like everyone else. I think the colors you chose to mix just look better together. The wheels and the whole car look pretty realistic.
The fifth picture is my favorite, mainly because I like blue. The blur you have going on looks good, though you kind of messed up on the mirror. The car looks really low and fast, especially with that spoiler its got. I like how the taillights are the only thing that aren't blue, and I like how the chrome exhaust tips pop out from under the car. Good picture.
I'm kind of out of compliments all the sudden, but I like the last picture. The colors combo is different than the others, with that purple and, err, whatever else is in it. It's just a cool picture, I guess.
Nice update, holmes.