Sebastian Vettel: There's never been a winter testing less conclusive than 2013
Champion says tyre graining "made it impossible" to read car's pace
By James Galloway. Last Updated: March 4, 2013 6:41pm
Barca: Day Four Report
World Champion Sebastian Vettel believes Formula 1's teams head into the new season on the back of the 'least conclusive' winter ever.
The culmination of the 12-day winter testing period on Sunday at the Circuit de Catalunya continued to provoke even more questions that concrete answers regarding the form book ahead of the first race in Melbourne, with no one seemingly quite sure who is in the most competitive shape, or crucially, to what degree.
Vettel's own Red Bull team remain the favourites heading to Australia but Mercedes' eye-catching late winter surge to the top of the timesheets has suddenly thrust the Brackley team firmly into the spotlight, whereas there are also many unknowns over McLaren, Ferrari and Lotus' true form over both long and short runs.
F1 on Sky Sports in 2013
Sky Sports F1 is the only place to watch every grand prix live in 2013.
Our dedicated F1 channel will broadcast every race, qualifying and practice session live, along with highlights shows, analysis and even more coverage via the Red Button.
Find out more at sky.com
And while testing timesheets are historically often an unreliable guide at the best of times, Vettel says the high levels of tyre graining experienced by the whole grid during all three winter tests has skewed the picture like never before.
"We have never had a winter that was less conclusive than this one," the Triple World Champion told Sky Sports News at the end of his on-track preparations for this title defence.
"Tyres last, if anything, one lap - for some people [it] may be different than others depending how much temperature you're able to create - so I think it's impossible to read the pace of the car and therefore to make out the favourites.
"I think it's not that easy but we will know in Australia."
The unpredictable performance teams were finding with Pirelli's softer 2013 tyres, which was first put down to an atypically abrasive surface at Jerez and then generally cool temperatures across the two weeks at Barcelona, meant drivers were often able to get more than one or two consistent timed laps during a stint before the rubber fell away.
Vettel admitted Red Bull found the inconsistency stymied proper set-up comparisons - but did stress that the situation could turn on its head come the expected warmer climes of Melbourne, thus effectively rendering the timesheets of the Spanish winter meaningless.
"It was extremely difficult to read some set-up changes and find the direction with the car because the tyres were simply not good enough," he declared.
"I think the last two days were fairly good in terms of weather - blue skies, sunshine, it wasn't very cold and the asphalt was quite warm - but the tyres were still poor, so we need to see.
"[We will] look into the data between now and Melbourne to understand a little bit more and then we probably know what expects us in Australia and for the beginning of the season - but it could all be different.
"So I think therefore lap times are not important and where we are now on the timesheet is not that important."