Villeneuve admires Sauber's resourcefulness

The Swiss team, one of the few without the backing of a top car manufacturer, are only seventh in the constructors' race after problems with their new car.

"The infrastructure is there, we just need bigger budgets now. We have a lack of resources," said Villeneuve.

"I've always been in teams where budget was not a problem, where we could get the parts we wanted and just try them."

But Villeneuve - a former world champion - explained that it worked differently at Sauber.

"It's a bit of a different approach, but the team makes an amazing use of the budget they have.

"With this amount of budget other teams would do less, it is very efficient but it would be good to keep this level of efficiency with more money.