I am soon getting a used 2020 model X from a private party. I want to utilize the Tesla Supercharger charging stations. What do I need to do to be able to charge the car? Is there an account that is set up? Very much a nubby question. Thanks. The car is the long range plus. How does that differ from the long range version. Mine had a lower MSRP? Was that just because my car has smaller 20 inch wheels vs the 22 inch wheels?