Recently I downloaded DRIVECLUB from the Playstation Store - it was a whopping 37GB download. After it installed it was only 26.36GB. After playing for a couple hours I can already say I don't like the singleplayer that much. There's no in-depth car customization and there isn't any options to upgrade or tune your car.
Let me know what you think because I remember before the PS4 came out - Sony hyped this game.
PSN: Btappin