Grenscross is a premier grassroots autocross event held annually in Essen, Belgium, near the Dutch border. Unlike clinical professional races, Grenscross is a high-energy "folk-cross" (volkscross) festival that blends motorsport with a community fair atmosphere. It is best known for its spectacle classes, such as the "Duo" cars and the "Three-wheelers," which are designed specifically to entertain the crowds. The track is built on industrial/farmland soil, leading to heavy dust or deep mud depending on the Belgian weather.