Codemasters has revealed that Dirt Showdown is now available on store shelves throughout North America. The launch video (shown below) showcases the maximum-impact racing, bone-rattling destruction game modes, freestyle Hoonigan events and multiplayer party games set to take center stage on DiRT Showdown’s World tour of motorized mayhem. From Miami to LA and San Francisco to Yokohama, the trailer features drivers taking down their rivals, boosting to overtake, hitting jumps, performing stunts and sending Showdown Challenges as they go for the win across DiRT Showdown’s wide range of game modes. DiRT Showdown players are also invited to sign up for RaceNet, the free new online extension for Codemasters Racing games that tracks and rewards player achievements. RaceNet launched in beta alongside the DiRT Showdown demo and new features now include players being invited to take part in regular community challenges and RaceNet events and the ability to add other RaceNet members as friends. Gamers will be able to earn new RaceNet Awards and XP which can be viewed on a new Driver Profile page and additional new pages will reflect the status of Showdown Challenges and enable players to compare best times and scores with their friends across a range of game modes. Gamers can enjoy these new features and more by registering at www.racenet.com. Take a look at the launch trailer below and tell us what you think about Dirt Showdown.