"We had two seconds deficit in pace, so if keeping him behind for 13 laps was good for the TV and our sponsors it is welcome, but we knew we would lose the position," Alonso said.
"Vettel overtook me by going out of the track. He finished in front, but I was very proud of my 13 laps.
"If he had not passed me on the lap he did it would have been the next one because we were in slow motion and they were at real speed.
"We had an aerodynamic problem and we were thinking of retiring the car.
"The rear wing was stalling and they were telling me to be very careful in the high-speed corners, we had battery problems and were completely discharged, and in the last stint they also asked me to save fuel because we were out of target.
"I think I enjoyed a little bit better the battle with Button. It was eight laps with Jenson [where] I could not pass, he was driving very well."