21st century Truck driver

The 21st century Truck driver is the Dynamic Application of choice for Truck drivers. He's the King of the Road. One day, he comes back to his home base, tired and dull from hourless driving on 20th century's highways. Parking the Truck, his boss comes by and says: Hey, you, Truck driver! - we got automated Trucks now. Our Truck driver sells his house, buys old Truck, makes Windows, paints, moves in, and drives on. Calculate how far he can go.