Slightly Mad Studios is not a huge development studio, but they have experience in making racing games. They made, for example : Need for Speed: Shift, Need For Speed : Shift 2, Test Drive - Ferrari Legends and so on. Even though this game is backed by community, Slightly Mad Studios really made a great racing simulator. Really tough to drive. You really need skills. There are no so many cars in games, but you'll love it. And also game has so many real-life tracks.