I've had both 67 & 69 California GS cars. They were based on Special 2-door post bodies and I believe were intended to be a budget priced GS. The California option gave you a high compression 340 (in 67) or 350 (in 68 & 69), GS hood, rallye wheels, and a vinyl top with bright window garnish. Other than that, they were minimally optioned (all I've seen had crank windows and bench front seat, auto trans, radio, heater, power steering, sometimes power brakes, that's about it). What you got was a low priced, light weight Buick, with alot of power that you could easily burn off a set of rear tires with.