Wreckreation

Wreckreation is the home of your very own MixWorld, a 400 square kilometers big racing realm that is yours to create, shape – and wreck. Developed by Three Fields Entertainment, a team consisting of Burnout and Need for Speed series creators, Wreckreation was designed to be the ultimate open-world sandbox experience for driving and racing fans alike. A complete world of your own design or designed together with your friends online. In Wreckreation you can continually strive to outrace, out-stunt or even out-crash yourself and the rest of the world on courses and tracks designed by you or your friends. But yours will probably be better anyway

Thanks @High-Speed007 !