Some of the major complaints about Gran Turismo Sport at launch involved the lack of depth in the game. Even though the game was announced to have a majority of online content, people believed it would still include a career mode. The game, however, has been widely accepted and more content will continue to release over time. Not to mention, this content will be free. Polyphony Digital heavily improved and evolved Gran Turismo 6 and provided support for multiple years. Today marks the day that GT Sport releases its December Update. With this update, players will receive 12 new cars and an offline, single-player league to play. The new cars include two Ferrari’s, a few Nissan’s and a few muscle cars. You can check out the trailer below to reveal everything from the update.