China Preview – will anyone do the double?

Nobody has yet won the Chinese Grand Prix twice. Since its inauguration in 2004 the race at the Shanghai International Circuit has enjoyed the unusual distinction of having had a different winner each time. And as five of those six winners go for the double - Barrichello, Alonso, Schumacher, Hamilton and Vettel - Button, Massa, Webber and Rosberg will be doing their best to frustrate them...