The Spa-Francorchamps is possibly one of the most challenging circuits that exists today. The track is twisty and hilly and has lots of sharp inclines. It is a short run from the starting line to the first hairpin La Source from there drivers race down a moderate straight to the point where the race track crosses the Eau Rouge stream. Most F1 drivers will claim that its one of most challenging sections of any existing circuit. No wonder that the drivers of historic racing cars want to compete on Spa-Francorchamps. One of the opportunities to do so is the yearly event “Spa Six Hours".