There are several reputable foreign car shops around, but most get mixed reviews or just look a little sketchy to me. Needed front brakes/rotors/sensors for my MB E550 and heard good things about Motorwerks. True to form, the shop is bright, clean and organized. Work was done in just a few hours (by appointment) and my car was washed and ready. You may not choose a shop for their pricing but Motorwerks was significantly less than the dealer.
This is a shop for those of you with Porsche's, MB's, Ferrari or Lambos, etc. The 'for sale' showroom is a mix of dream cars.