Fast, knowledgeable - the go to repair shop
Have had two experiences with Black Rock Auto. First was a Prepaid Inspection on a GTI one of my sons was considering buying. The PPI the Black Rock performed was VERY thorough (about two hours long) and exposed all kinds of problems invisible to the layman's eye. As I mentioned this was a possible purchase of my son's, they noted they wouldn't trust this car to THEIR son, and provided a good long explanation of what cars would make ideal purchases and why. Nothing like unsolicited guidance from experts!
Second experience was my other son's Civic - weird, unexplained engine kills. After one shop in Davis (who shall remain nameless) was unable to diagnose the problem, Black Rock got it right on the first try, saved us hundreds of dollars and got the car running in a day.
For auto repair in the Sac area, they're now our go-to shop. Can't say enough bout them.