fast section of road in the forest leads to Blanchimont. Here, the new short Grand Prix track of 1979 joins the old layout. Eighteen Formula One World Championship Grands Prix were run on the Spa-Francorchamps circuit's original configuration, which was boycotted by F1 in 1969, before the revised circuit banished it to the history books in 1979. The lap record of the old triangle-shaped track is 3 minutes and 13.4 seconds, held by the French driver Henri Pescarolo, driving a Matra at the 1973 Spa 1000 km World Sportscar Championship race at an average speed of , but the fastest ever recorded time of the old Spa circuit was the pole position time for the same race—3 minutes and 12.7 seconds by Jacky Ickx in a Ferrari 312PB. New layout Over the years, the Spa course has been modified several times. The track was originally about long, but after World War II, the track underwent some changes. In 1930, the chicane at Malmedy was eliminated and bypassed, making the course even faster, but the chicane was re-installed in 1935, albeit slightly different. In 1939, "Virage de l'Ancienne Douane" was eliminated and cut short, thus giving birth to the Eau Rouge/Raidillon uphill sweeping corner. In 1947, the chicane at Malmedy was again eliminated and bypassed, and was made part of the Masta Straight. The slight right-hander that was originally Hollowell (the corner before Stavelot after the second Masta Straight) was eliminated. And finally, instead of going through a slight left-hander that went into the town of Stavelot and a sharp right-hander at a road junction in Stavelot, a shortcut was built that became a very fast, very wide right-handed turn that bypassed Stavelot. All these changes made the final configuration of the old Spa circuit long, and also made Spa the fastest open road circuit in the world. In the final years of the old circuit, drivers could average . The biggest change, however, saw the circuit being shortened from to in 1979. The start/finish line, which was originally on the downhill straight before Eau Rouge, was moved to the straight before the La Source hairpin in 1981. Like its predecessor, the new layout is still a fast and hilly route through the Ardennes where speeds in excess of can be reached. Since its inception, the place has been famous for its unpredictable weather, where drivers are confronted with one part