 Complete the following phrase:  The original track was dominated by the 1.8 km long Mistral Straight that is followed by the high-speed right hand Signes corner. The long main straight and other fast sections made the track very hard on engines as they ran at full revs for extended spells. Engine failures were common, such as Ayrton Sennas huge crash during the 1985 French Grand Prix after the Renault engine in his Lotus failed and he went off backwards at Signes on his own oil and crashed heavily, with only light bruising to the driver. Nigel Mansell crashed at the same place in the same weekend during practice and suffered a concussion which kept him out of the race. Mansells crash was the result of a slow puncture in his left rear tyre causing it to explode at over , which detached his Williams FW10s rear wing. The Honda powered FW10 holds the race lap record for the original circuit when Mansells teammate Keke Rosberg recorded a time of 1:39.914 during the 