Petrov insists Alonso also a 'pay-driver'

Vitaly Petrov has hit out again at his 'pay-driver' label, insisting even the highest paid driver on the grid has a similar arrangement with his team.

"I see no difference between myself and Alonso," said the Russian, who has moved his lucrative backing from Renault (now Lotus) to the Caterham team for 2012.