Sam's van

Sam's van is a white 2006 Chevy express, with the license plate reading "NHF 2Y5". It serves as a form of transportation to the Duo, and is first seen in the second season.

Sam's van was given to Sam by one of his buddies, and would be only given to him under the circumstances that he would win a bet, which he did, getting him the Chevy van.

The bet was unknown, not unlike the circumstances of it.

Sam successfully kept his 2006 Chevy express a secret from Dean until the first episode of Season 3, when Dean appears unexpectedly. He shows no signs of knowing beforehand, and is not upset about Sam's new ride.