Lease and Immediate Buyout?

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Does this concept (pay huge downpayment and then buy it out to lower sales tax) work even in CA? I read online that CA charges sales tax on the sticker price (MSRP) and does not consider the incentives, rebates, discounts or down payments made.

In general also, I would like to know if CA charges sales tax on the capitalized cost or the MSRP, if I decide to buy out immediately.

Thank you for your help.