First of all, they do not do Japanese cars and the other mechanic is no longer there so the two negative reviews here are not relevant.Adam and his Dad Phil (owner) are amazing, honest, knowlegeable and really are the best Porsche mechanics in San Diego... hands down. For German and Brittish cars, this is the place.My first experience was in January getting my good friend's 1991 Porsche 911 Convertible fixed up to sell. Pioneer could not figure out why the top would not work and what was draining the battery. After three tries there, I brought the car to Classic and they found the problem and fixed it. (It was complicated and they nailed it.) Phil also diagnosed and fixed other pesky issues that others had failed to cure. (a fuse that kept blowing, strange rattle and gauge problem.)I just brought my 1987 911 targa to them this past week. I treat this car like my baby and thought it was at optimal performance other than a bad AC system. Phil drove the car and inspected everything. He said there was a slight shake in the steering and the shifter was loose due to bad bushings. I was skeptical! The car had a major overhaul at Dieters and they never mentioned either of these issues. I thought nothing could be done. Phil changed the shift bushings and now the shifter is tight and shifting is a totally different/better experience. He upgraded a collar in the steering assembly and the steering is now much tighter and much more precise. As an extra, he cleaned the doorwells at no charge and literally went through the entire car. I think it simply bothered him that they were dirty. My kind of mechanic!!!He upgraded the AC evaporator (Kuehl), found and cured a pesky leak in an impossible to access place and got it blowing at a respectable 43 degrees. When I picked it up he had also waxed and detailed it for free.The car now drives so much better that I honestly can't believe it.He seriously is the Porsche whisperer. I have sent other Porsche owners to them and we are all now life customers. Be skeptical if you wish but call Adam/Phil at Classic and try them once. I guarantee you will never service your Porsche anyplace else.They also do Triumph, Bentleys, Astons and BMW's but my experience is exclusively 911 Porsches. Based upon there dedication and service, I would have no problem tasking them with work on any of the above brands.