Nico Rosberg said part of the gulf to Sebastian Vettel in Brazilian Grand Prix qualifying was due to him using up his KERS too soon at the end of Q3.
The Mercedes driver did two back-to-back flying laps on intermediates during the pole shootout as he qualified second. He ended up 0.623 second adrift of Vettel, but lost four tenths of a second in the final sector on his best lap.
“I finished my KERS before the last sector, unfortunately,” Rosberg explained. “That is just a compromise from doing two consecutive laps in these wet conditions.
“That was to be expected and we chose to do it that way, and that cost us some lap time.”
Even so, Rosberg doubted he could have beaten Vettel even if he had saved his KERS.
“I am surprised by the gap to Sebastian,” Rosberg admitted. “It’s very big. It definitely would’ve been difficult to get close to him even if we had got everything perfect.
“The optimum was second place, and we got that.”