Have you ever had an auto repair shop give you back money because the repair that they did, ended being simpler than originally estimated? I have been driving car for 50+ years (356SC, a Lexus, and a 911SC), and I never got a penny back; it has been addional money to pay, and a long list of addional repairs needed. Well my history/experience changed last week! My 1982 Porsche SC would not start and I had the tow truck take it to CALLAS RENNSPORT for repairs. David gave me an estimate of approximately $ 740 to repair the cold start manifold plate. Two days later Callas shop called me to tell me the the car was repaired and that I could pick it up! When I started the credit card process I was informed that the cost for the repair was ONE HALF of the original estimate. Needless to say I was shocked! The conclusion of all this is that Callas is not only the best mechanic for Porsche , he is ALSO the most honest. That is a rare find nowadays!