 Complete the following phrase:  The 2010 race saw a new circuit configuration being used for the Grand Prix. It used the Endurance Circuit layout, extending the lap length to . The new track turns left shortly after Turn 4, the right-hander at the top of the hill following the first sequence of turns. There is then a sequence of five turns before the cars head back to the original circuit. Then comes a left-right kink before a tight hairpin returns the cars onto the main track. The track would have reverted to its original layout for the 2011 race, and did so for the 