Frank Williams teamed up with Patrick Head in 1979 to turn Williams into a serious F1 proposition and it was Head's FW06 which helped Alan Jones take the world title in 1980. Keke Rosberg repeated the feat in 1982, despite winning just one race. Nigel Mansell won the drivers' crown in 1992 with the Adrian Newey-designed FW14B and Alain Prost took a further championship in 1993. There were dark days ahead. In 1994, Ayrton Senna, who had replaced Prost at the start of the year, was killed in the San Marino Grand Prix. It was a remarkable performance for Damon Hill to bounce back to win the championship in 1996, and Jacques Villeneuve took yet another title in 1997 after a controversial battle with Michael Schumacher's Ferrari. A few mediocre years followed but last season's FW25 battled Ferrari right until the last, though they have not been as successful this season. Juan Pablo Montoya is an exciting, hugely talented driver whose performance is marred by his inconsistency and the fact he is famously temperamental. Ralf Schumacher, lumbered with the 'Schumi's little brother' tag, is a quick driver but inconsistent and is often criticised for not overtaking enough. He made his breakthrough in 2001 with three victories at Imola, Montreal and his home race in Germany, but in 2002 only managed a win in Malaysia. He returns after missing six races with two broken vertebrae after ramming into a tyre-wall at Indianapolis.