Granted, I didn't go searching high and low for the best price. I figured I had to get the Smog Check - it's like taxes. So this place just happened to be up the street from where I lived. I love it so much because everything is straight-up. You walk in, tell them you need a smog check, hand over your DMV papers. Bob tells you that you're welcome to go to lunch and come back (then gives very good recommendations of things that are in walking distance). You go to lunch, come back and your car is done, it's passed its check, they've filed your certificate with the DMV electronically and you can renew online. Doesn't get better than this. Oh, and they give you a coupon in two years when you're due for the next.