Gentlemen (and ladies), start your engines, as a playable demo for GTR is now available, offering the chance to test-drive the upcoming racing simulator from SimBin. The 215 MB download is available on this pop-up page on the official GTR Website and mirrored on 3D Gamers, 4Players.de, Boomtown (registration required), FileFront, Filerush (torrent), Gameguru Mania, Gamer's Hell, and Worthplaying. Here's the official description:

GTR’s official demo provides the opportunity to try both the pick-up-and-play Arcade Mode as well as Semi-Pro Mode for the more experienced user. Now everybody can improve their skills at the world-famous Spa-Francorchamps circuit in the Lister’s Storm supercar (GT class) and Morgan’s unique Aero 8 (NGT class).

The Artificial Intelligence (AI) in GTR is groundbreaking in the racing genre – your opponents will attempt to pass and re-pass you, pressure you into making mistakes and even make mistakes themselves. In the demo you are able to race against up to 19 AI opponents with no time limits.