OK, as a semi-pro photographer myself maybe I should chip in. I love your pics but I think a bit of constructive feedback might help
In each of the pictures your car was underexposed. This is a no-no in photography - your main subject should be properly exposed with the background exposure controlled to the level that you want. This is very difficult to do in a lighting situation such as yours because our cameras have limited dynamic range and struggle with the extremes in brightness.
Solutions to your problem:
1. Expose for the background (as you have done) and then bring foreground exposure back up with flash. This is difficult and expensive to do.
2. Take an exposure for the foreground and another for the background. You will require a tripod. Blend the two exposures in photoshop.
3. Shoot a middling exposure knowing that your background will be sllightly blown. Then selectively dodge and burn in photoshop. This image was taken with the car slightly underexposed and the sky slightly overexposed. In PS I used a layers mask to darken the sky and brighten the car:
Your first and fourth pic look like they can be rescued with a bit of PS work but I think all the others may be a little too far gone to be rescued.