Pirelli’s 2014 F1 tyres said to reflect a more cautious approach

Pirelli began testing its prototype 2014 F1 tyres at the Bahrain International Circuit yesterday, and while the official data gleaned from the 2013 cars run by the Red Bull, Ferrari, Mercedes and Torro Rosso teams is a closely-guarded secret, the tyres that took to the track in Sakhir are rumoured to make for slower lap times than those achieved during this year’s season.