You can play WWII offline . If you are not connected to the internet, you can play the campaign (it's really good, you should play that) and local multiplayer (basically it's split-screen and bots).

Sam inherits the car following Dean's death in the series finale. The Impala remained with him until his old age. It is not known where the car went after Sam's death, but it may have been inherited by his son.

Jensen Ackles, who plays Dean Winchester on Supernatural, had a clause to keep the iconic 1967 Chevrolet Impala put in his Season 15 contract.