 Complete the following phrase:  Because the race was rescheduled and the longer period of darkness, the Automobile Club de lOuest ACO permitted one battery change. With high speed being such a talking point, Ford volunteered to sponsor a major road realignment on the main straight, installing a chicane just before the pitlane. The changes added at least 10 seconds to a lap, as well as causing greater wear on tyres and brakes. Although the track had been widened and safety features of the track improved in the aftermath of the 