Spa: Sebastian Vettel blamed a lack of power from his Renault engine for the massive gap between his third placed Red Bull and the two Mercedes on the front row of the grid for Sunday's Belgian Grand Prix.
The four-time world champion was 2.126 seconds adrift of pole-man Nico Rosberg and 1.898 seconds behind Lewis Hamilton. (Rosberg on pole)
"The reason we're behind is fairly simple," said Vettel. "We know we are down on power. Mercedes can run a bit more wing level, they have more down-force and can still take that wing on the straight - it's the reason.