I just did that very thing! My price for three years/36,000 miles, Roadster and battery, was a total of $12,000. It's $5,000 for the Roadster not counting the battery, $7,000 for the battery. There is a $200 deductible per service center visit (not per item). However, so far not all service centers are not yet enforcing the deductible. You need to purchase the ESA within 30 days of the expiration of the C.P.O. warranty.