Tire

3A McLaren Mercedes technician check tires in the paddock, at the Catalunya racetrack in Montmelo, Spain, Thursday, May 9, 2013. The Formula one race will be held on Sunday.

Manu Fernandez/AP

A McLaren Mercedes technician checks tyres in the paddock at the Catalunya racetrack in Montmelo, Spain, on Thursday. The Formula One race will be held on Sunday. Read more