Nobody is in any doubt about just how strong Sebastian Vettel has been in 2011. Jenson Button too has been excellent.
"Jenson's probably been better than you would have expected," says one team principal. "But is that him going forward or Lewis Hamilton going back? Nobody really knows."
That has always been Formula 1's downside. You can only really judge a driver against his team-mate, and sometimes even that's difficult.
Someone could be driving out of his skin, but without a top car he's pretty much invisible.
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