I just got my windows tinted and they make the car look great. If anyone in the LA area is interested, The Tint Factory is the place to go. I'll take pics and post them if anyone want's to see. The back was one piece and the side rears don't have a cut for the bracket that cracks the window open. Very clean job with a lifetime warranty. Great price too!
ps. The owner has a 325is and one of his buddies has a '98 M3 coupe (just like mine) and after I saw the two cars, I decided to get it done there.