I'd buy a Tesla. :)
I would use the money to make a change..... by promoting vehicles less/non dependent on oil. The less dependent america is on foreign oil the greater chance we have to grow as a great nation again. Oil is hurting our economy more than we know. America needs confidence again and its hard when we cant control oil prices.
Then I would invest in education like Mark Zuckerberg (facebook founder). Education is key to a strong core country.
The money is too great for one person.