You´re right Silent Moebius, is that better? Now the wheel (+brake) is 3285 tris which means that with adding polies the count per 4 wheels got only about 700 tris higher.
@SM - Yes, they could be better but thinking about gained quality/polycount I won`t be improving that area.
Here`s an update, only asymmetrical parts to model on the outside (that`s windscreen wipers, trunk logos, gas lid and tow hook slots). What do you think about the taillights? They are not correctly mapped yet, I just wanted to see if they work just textured.