I think you did quite well. My only two thoughts would be (1) If possible, use a larger aperture and longer glass if possible to reduce background definition, and (2) Some cropping to move the main subjects out of centre would make them stronger. In #1, I would suggest cropping most of the left side off to near the car's right-hand fender, and in #3 just an overall tighter crop on the car.
Just my $00.02 worth - your mileage may vary.
~John