These look really good, buttt I’d say the contrast is a little too high, you want the blacks to look black but you don’t want to lose detail in the dark parts of the photo. A good example being the shadow under the car, the black drowns out the detail of the wheels and the bodywork in the front bumper. You I’d say turn it down just a fraction and see how that looks but for the most part, less is more with a lot of the settings in photo mode.
I completely agree with stupidsalami, a good rule of thumb that I use when i want to increase the contrast of an image is to make sure the car’s shadow and the tyre/wheel don’t blend together and also increase the colour a little bit if necessary.