Weather key to title

McLaren team boss Martin Whitmarsh believes unpredictable weather conditions at the remaining rounds of the 2008 season will be the key to who ends up winning the drivers' and constructors' championships, with hotter conditions in particular favoring rivals Ferrari.

"I think Ferrari were pleased the sun came out on Sunday as I'm sure they feel when the track temperature really heats up that's when their car really comes to them," Whitmarsh said.

"We’re now entering extremely interesting territory where we wont be entirely certain what sort of temperatures we'll be encountering at some of the future races: Monza is likely to be hot and Singapore will probably be cooler, but the races at Spa, Fuji, Shanghai and Brazil could just as easily be sweltering as torrential," he added. "Regardless, we will continue to make changes to our car right through until Brazil