Rockstar Games have launched the official website for the upcoming Grand Theft Auto IV expansion, The Lost & Damned, exclusively for download on the Xbox 360. The official site gives us insight on the game features as well as how to download it when it releases come February 17th. All the exclusive features for The Lost and Damned include the following.

• All-new missions and a new storyline that interweaves with the original story arc of Grand Theft Auto IV.
• Play as Johnny, a member of The Lost Motorcycle Club. Experience Liberty City now with the perspective and lifestyle of a member of a biker gang.
• Added range of weapons – including the all-new grenade launcher and sawed-off shotgun. New weapons will be available for use in single-player and in all new multiplayer modes.
• New vehicles – featuring a collection of bikes that include Johnny’s own customized heavy-duty chopper.
• New and improved bike handling and physics.
• Set of new action-packed multiplayer modes – details coming soon.
• All-new in-game TV, internet and radio content featuring new radio shows and original music.
• Plus new side-missions and Xbox 360 Achievements…

Two new videos are on the site as well. We’ve taken the liberty of embedding them for you right here.

Grand Theft Auto IV: The Lost & Damned [Rockstar Games]