Just days after former teammate Ralf Schumacher warned that former employers WilliamsF1 are on the beginning of a slippery slope into F1 oblivion, Juan Pablo Montoya has also hit out at the Grove outfit.

Having begun a strict training programme in an attempt to shed weight, the Colombian criticised his former employers. "Williams said I should be fitter but did nothing about it," he said, clearly blaming the team for not stopping him celebrate his Brazil victory with a trip to his favourite restaurant, McDonald's.

"I'm getting a kick out of working with Ron Dennis, "he revealed. "They're motivating me a bit more. I never had that at Williams."

Having already declared that he was not fazed by his new teammate Kimi Raikkonen, Juan Pablo took the opportunity to have a dig at the previous McLaren incumbent, David Coulthard.

"David had his chances," said the Colombian. "He was here a long time, during which Mika Hakkinen won the championship twice."