I like them.
I think the first one is a lot stronger than the second.
You might clone out that little artifact in the middle of the front bumper - not sure if it's a weird reflection, or a little dent, or what.
And maybe burn down a little bit in the front windshield - for a commercial look, the driver's face is a little distracting.
The second could be much stronger with a different framing. I'd like to see the empty space in front of the car instead of behind it. If the car is driving to the right, put some space over there so it's not about to drive right out of the frame.
I think the "cartoonish" look is from the cranked-up contrast and saturation. I don't find it objectionable. If anything, I might reduce the saturation of the brown/green hills and background, and leave the car and road stripes oversaturated as they are.