Very clean car. Sometimes simple is nice too, i like it. The pictures arent bad, i think you seem to be getting some glare which is more your problem then your mp. FRom what i understand 3 mp is fine unless you plan on really blowing up the images which would warrant a higher mp count.
As far as the cobra goes 12k is a little high. You didnt say whether it was a coupe or vert though...Really a car is only worth what someone wants to pay for it but i would say maybe around 10k sounds more reasonable to me. Personally i probably wouldnt pay that much only because i dont like white cars that much...