damianku,
Welcome! MVPA stands for Motor Vehicle Purchase Agreement, and are the legal documents that you must sign to get your car. It has the pricing for all options, taxes, etc., spelled out for you so that you know what your final payment to Tesla would be. In my original MVPA the Louisiana registration, titling, and transfer fee was $187. I added the Tech Package, so they had to generate a new MVPA. In the new one the fees had increased to $1620. When I questioned this, my Tesla rep explained that they got this info directly from the Louisiana DMV, and probably reflected some new law just enacted or some state fee that had been tacked onto EV purchases. Have you ordered your Model S yet? I test drove it in Dallas (after I'd put down my deposit), and was hooked. I know that you'll enjoy yours too!
Mike