Now you'll really be in the dog house if we get any driveway shots haha

Looking good my friend! Polarzied and all! What polarizer are you using? How much color processing are you doing? They seem a bit cool IMHO which is quite common with polarizers if your not doing anything with the color. Not saying there is anything wrong with them, I too generally like cooler images...
It is apparently time for a sensor clean!
What filter(s) are you applying to the sky? also what if any sort of selection tool are you using for those changes? There is a slight halo effect going on with almost all of them? Are you using the high pass? If so and you want to keep that amount of high pass, what I do when that happens is use a mask and with a soft brush take out the halos leaving the rest of the image with your desired look.
Compositionally I like #1 the best esp with the driveway/windy road leading up to where the car is and the mountains in the background. Overall I think #4 is my fav, the car is looking great! I can't wait for more warm weather and to see more shots from everyone!