aesculus
Still Trying to Figure This All Out
You are only charged for the sales tax at the place the car resides, not where you buy it. If someone told you differently they were miss informed. I made sure of this when I got my car from the Factory last March.The insane discrepancy between Fremont's 9.5% sales tax and Newport Beach's 8.0% sales tax is why we took delivery in Newport Beach instead on our 2015 P85D last year. HUGE difference... And we can always drive to Fremont for the Tesla factory tour and stay in a hotel for a LOT less than the 1.5% sales tax "surcharge".
Now for out of staters, they should only pay the flat Calif rate, not the Fremont rate. If someone (your DS) tells you differently then move up the food chain until you get the correct answer. It has to do with where the car will be registered.