Nice shots. Few pointers for next time.
Shots 2 & 3: In this particular composition, turn the wheel ALL the way to the right. This will give the illusion that your tires are bigger and give your car a more leaner/progressive stance.
Secondly, try some shots up on a ladder or higher point of view looking down at the car. Like a 2/3's shot. This will also give your car a sexier stance, and the illusion that the car is lower to the ground than it is. This also eliminates the nasty fender "gap"-- that you'll get that if you shoot straight on or have a lower point of view while panned out.
Otherwise nice shots!
And for bonus, Photoshop(heal/stamp/contentawaretool/path) the foreground off your bumper on any shots that you can. If you have the time and/or skills.