1987 saw Silverstone modified; the Woodcote chicane was no longer used and a new left-right chicane was built on the Farm Straight just before Woodcote. Silverstone's layout, like Brands Hatch, had changed little since 1949. The circuit was still fast, and it saw Mansell charge after Piquet (who had decided to run the whole race on one set of tires) and the British driver broke the lap record 11 times, caught and passed Piquet and took victory; the Silverstone crowd broke ranks and ran onto the circuit after the race was over; this was to start a number of dramatic events surrounding Mansell for the next 5 years. 1988 saw Senna win a rain-soaked event, and Mansell finished 2nd after driving very hard and passing many cars to attempt to catch Senna; this was one of Mansell's two race finishes that season. 1989 saw Prost win in a McLaren after his teammate Senna went off at Becketts; Mansell finished 2nd again driving for Ferrari; and sometime after the event, it was decided that Silverstone, the fastest circuit on the Formula One calendar, was to be heavily modified, and the project would be completed for 1991. The 1990 Grand Prix was the last motor race on the high-speed circuit; and Mansell drove hard and led a lot of the race; but gearbox problems eventually forced him to retire, where he threw his gloves into the crowd and announced that he was going to retire, a decision that he would later take back; and he effectively dominated the next two events, driving for Williams. The circuit was now slower and every corner on the circuit except Copse was different, and it also included an infield section right before the pits. After 1992, Mansell had retired from F1, and 1993 saw new Williams driver Damon Hill lead much of the race until his engine blew up, and Hill's French teammate Alain Prost took his 50th career Grand Prix win.