I had superb results at Auto Salon 2000 and also Stuttgart International.
http://www.autosalon2000.com/
They did great work on a Porsche I owned. I know that Champion sends all their cars there. DO NOT go to the shop in the Gables. I believe its called Countach. My friend took his Audi there. They did a crap job and would not fix it after. I'm warning you on this one! Good luck and dont sweat it.