From November 27, Gran Turismo Sport players will be able to download a patch that adds three new cars to the game: Shelby Cobra 47, Audi R18, and ISO Rivolta Zagato VGT. As well as that, a monstrous update is coming in December that adds an offline single player mode called GT League.
GT League is based on the old GT Mode from older Gran Turismo games where you race in a variety of cup competitions and endurance races. While, yes, you can play it offline, you have to be connected to the internet to save your game.
An additional 12 cars will be added to the game in the December update that adds GT League, including two Ferraris, a Lambo, and a number of others you can check out at the PlayStation Blog.
About 50 cars will be added to the game before next March, so expect a blast of updates between now and then. You can have a gander at a few of the cars you can expect to be driving, plus the upcoming GT League, by clicking on the gallery below.