It's easy to miss this unassuming auto repair shop in the industrial milieu of South Van Ness, but it's worth seeking out Auto Lab when that biannual smog inspection notice arrives in the mail. Be sure to ask for Henry when you arrive. He'll pre-test your car for free, and of course he'll be happy to fix it if it doesn't pass, but this way you have the option of knowing where you stand before you shell out the 35 bucks for the emissions check. If your vehicle does require a few adjustments to pass, the rates are reasonable and Henry works quickly -- you should have your car back within a day or two. Until the next smog check ....