[rokndad]

The only answer is to go into the DMV with the VIN and tell them you are considering buying the car, and request that they confirm whether or not is has an SB 100 exemption. If it does, you're home free and need to confirm whether or not there is a SB 100 exemption sticker somewhere on the car.

If not, you have until whenever you can get in line for Jan 2 to get your SB 100 exemption. If it is licensed in CA as a 2006 SPCN and the registration is current, then it either passed a smog test or had a SB 100 exemption.