Model 3 SR+ - Give an option to add 10 miles of range as the new SR+ in the web site

The Model 3 SR+ for new customers is configured to permit 250 miles EPA. For those having the version at 240 miles EPA, a paid option should be available to permit to upgrade to 250 miles EPA. The price of the SR+ has been raised by about $500 USD. So, a fair price for this option could be around this amount.