4 kilometres of asphalt, 10 curves of which 3 chicanes, a daring Sacramentsheuvel and 2 long straights. Circuit Zolder’s highly technical track has always created a challenge for man and machine. This going back to its early beginnings (in the meantime more than 50 years ago), passing over the Formula 1 years of the ‘70s and ‘80s, right through to the present day.