The FW11 was updated slightly for to become the FW11B, and the team made no mistakes in wrapping up both championships. Honda were now supplying Lotus with the same engine supplied to Williams (though Lotus used the 1986 "RA166E" engine rather than the "RA167E" 1987 engine used by Williams), which helped Ayrton Senna challenge consistently, but the FW11's superiority told, and Piquet finished in the points (mostly on the podium) in every race other than San Marino (where he had a terrible crash at Tamburello during Friday practice, and he emerged with only a sore ankle, and he wanted to start the race but was prevented from doing so by F1 Medical boss, Prof. Sid Watkins who told him "You have a concussion, you can't race"), Belgium, and Australia, and he was champion. As for Mansell, he scored six victories including a memorable come from behind win at the British Grand Prix at Silverstone, passing Piquet for the lead with just 3 laps remaining. He scored twice as many wins as Piquet, but also had the lion's share of bad luck and unreliability. Piquet's third championship was assured after Mansell had a major crash during practice for the Japanese Grand Prix.