Had mine done over the weekend it took long to do i wasnt expecting that. Ive had tints on cars before and they do them fast about 1hr. The Z4 being smaller I thought would be even quicker. The front windows are simple takes 30mins the rear took him longer though as theres no space to access the screen good. I was shocked how long it took them for such a small car. I went for 35% in the end but think i should of gone darker now. Cost me £80 but i did have to wait about in the cold for over 2hrs. Im pleased with but i might go back and get the rear darker to 20%.
Their are some that really abuse the law though which shocked me. A young lad came in to get his tints removed from the front window