Make the yellow marks on the ground matt instead of mirror, add bump map on the asphalt, add a skybox to remove the boring lightning plane above the car. I think the wall texture is not yet finished so I don't have to comment it.
It could be that the windows were missing when you manipulating the car by accident.
You do not often see the brake lights, reverse light, side indicators and reflectors glow at the same time. Try create a mask for your illuminate map to just illuminate the brake lights.