Button unsure over extent of McLaren gains
10 May 2013 – Jenson Button has admitted that he is uncertain as to how far McLaren has moved forward after trialing the team's substantial Spanish Grand Prix upgrade package, with early wet weather conditions limiting representative mileage during Friday practice.
The Briton, who finished the day just ahead of team-mate Sergio Pérez in 12th place, believes the outfit now has a clearer understanding of the correlation between its wind tunnel and the track, but does not yet know where it stands compared to rival outfits.
"As with any test of an upgrade package, there are positives and negatives to take away from today," said Button. "There’s now a better understanding of the correlation between the track and the wind tunnel. That’s positive for the future, but of course we’d always like more. So I think we’ve moved forwards, but I think the others have too.
"We were limited in terms of the amount of running we could this morning, so there’s a lot of data to sift through and plenty of things to change. We need to look at those elements that are potentially working and those that are not helping the car balance. We need to focus on a couple of areas – but, hopefully, we can improve them a bit."
Button picked up a fine of €1000 (£845) for speeding in the pit lane during the morning session, breaking the 60 km/h (37.2 mph) limit by 26.3 km/h (19.1 mph).