With help from Sandia National Laboratories, Goodyear developed its "Triple Tred" feature to address what Goodyear discovered was drivers' biggest fear: changing weather conditions.
Mercedes' Nico Rosberg set the quickest time of one minute 43.380 seconds -- a second slower than triple world champion Sebastian Vettel's fastest efforts from Friday practice as none of the drivers had the chance to use Pirelli's new supersoft compound tires due to the wet conditions.