Button says China win his best yet

The Briton kept his cool in the tricky conditions and, thanks to making the right calls, Button took his second win of the season and with it the championship lead.

Button lead McLaren team-mate Lewis Hamilton to the team's first one-two finish since the 2007 season.

"For me, it is my best victory - every one you win becomes your best victory but this was was pretty tough conditions," said Button.

"The good thing is our pace was very good today. It wasn't just the call of weather, it was good pace. At the end we were two seconds a lap quicker than other people. We will don't know where we are in the dry, but we will forget about it at the moment."

Button, who had also made a bright call to win the Australian Grand Prix last month, said today's victory had nothing to do with luck.

"It is not luck we came out on top today," he said. "We chose correctly in the conditions. The start was the right call definitely but it was slippery and we knew how quickly the soft tyres would be working.

"It was the right call. My first few months with the team have been extraordinary. I feel a real part of the team now."

The world champion said his decision to stay out on slicks early on was crucial, as it was the safety car being deployed.

"Really important, it made the race," he said. "If we didn't have the safety car later in the race for debris we would have been a long way up. The safety car definitely helped the situation for those who stopped for inters.

"Staying on dries was the right thing, you wouldn't think it was, but they were good, you just had to be a bit careful. Definitely the right call and then when the team called me in the lap was the right call. The tyres had started graining so it was too wet for slicks."