I don't like the font. Plus I never liked the effect in PS, where the text looked a bit 3Dish. Not only for yours, for any.
I don't think the black colour(and font too ofcourse) fit the down. It hides a part of the other car, not good.
The placement of the cars is not that good too. You either cropped at wrong parts or took the picture a bit diagonally.
But take that as I'm trying to help, you have a potential, it doesn't look ugly, but it doesn't look THAT good too