in this AMUS article it is explained what they did to MAS, unbelievable...
also, In the Autosport article... Williams weren't expecting this "tyre life" when on friday it became very clear that you could go very long on those, especially the mediums...
Also interesting how the Merc engineers nearly screwed Nico because they also weren't believing what was happening (it was against their predictions.. )...
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also: http://www.autosport.com/news/report.php/id/116344How did Nico Rosberg manage to drive through 52 laps?
Nico Rosberg was in Sochi more than 300 km with a set of tires on the road - which is this year new record . Pirelli's motorsport director Paul Hembery had joked the day before: "With the tire you can go through the race without stopping." The conservative choice of the mixtures and the unusually smooth asphalt made for a little wear. Nevertheless, it was a long time at Mercedes not sure whether the plan would rise.
"We knew that it is critical," says Mercedes team boss Toto Wolff. "20 laps to go, our experts have said that it probably will not work. We had a very funny debate on the radio. Our tire specialist who is for me the best in his field, has said that it will not work out. We discussed I introduced myself as ignorant and said:.! Let him just go through the oily surface, the tire has built up grip at the end and took so long to work ".
Why Felipe Massa got no further forward?
Felipe Massa started after his qualifying problem losing battle. From rank 18 points were a long way off. But Williams had a plan: The Brazilians should start on medium tires and then switch after only one lap on the faster soft rubber. "But then I caught a great first lap and was lying in 11th place," says the pilot. "I have asked over the radio if I do not it better to stay outside, but they have been gathering in my schedule."
As an engineer Smedley explained later, it was probably the wrong decision. It looked for a long time yet everything good for the comeback. In the slipstream of Nico Rosberg Massa fueled through the field. The speed was there. But behind Sergio Perez was suddenly an end to the forward thrust. "I just could not get over. His car had good traction and was fast on the straight," said Massa frustrated. "I wanted to wait until he goes to the box and then open the throttle., But because my tires were already over so that he could stay in front of me."