I found Advanced on Yelp a few years ago when Royal Motors gave me a quote for a repair on my Beetle that I just couldn't stomach. Advanced did the job (plus a bunch of other related work) for much less. Then, when I had another problem after that in the same general area of the engine they had worked on, they fixed it for free, because there was a chance that they had touched the area that was now broken. That showed me how honest Randy (the owner) was, and I never went back to Royal again. By 2010, my beloved Beetle had gotten quite old and needed a bunch of repairs. Randy felt bad that I was coming in so often that he started giving me breaks in price, though there was no reason he had to do so (it's not his fault I have an old car). Most recently, an old problem recurred -- the New Beetle sunroof has a design defect in its drainage system that sometimes leads to water getting inside the car. This has happened to my car a few times over the years, and it happened again this month. I brought it in to Advanced, fully expecting to have to shell out a couple hundred bucks for the fix. To my pleasant surprise, though, Advanced fixed it for free, saying that since they had fixed the problem for me before, they wouldn't charge me again this time. This made me realize, it's about time I write these guys a great Yelp review. Not only do they beat Royal Motors' prices, they are friendly and helpful and they give you breaks where Royal would just find another reason to squeeze more money out of you. If you're in SF and have an Audi or a VW, you're crazy if you take your car anywhere else.