At the Spanish Grand Prix, Prost secured his sixth win of the season, again in an attempt to delay an almost inevitable eighth race win for Senna – that would secure his first of three championships. As in Portugal, Senna suffered from fuel gauge problems, as well an overheating engine and was lucky to secure fourth. Nigel Mansell doubled his British Grand Prix efforts and scored another six points. He moved into second early and while never seriously threatening Prost for the lead, it was only a slow stop for tyres on lap 47 which prevented the Englishman from pressuring the Frenchman late in the race. Alessandro Nannini continued to impress when drove a steady race to finish third in his Benetton.