Jenson Button admitted it was not easy to accept what he labelled as a "massive" gap to the fastest cars in qualifying for the British Grand Prix.
Button will start his home race from fifth position, a place he was not unhappy about, but the Briton conceded finishing over 1.5 seconds off pole position was just not good enough.
"I don't know what to make of that," said Button. "My first lap was not great. I think the balance of the car wasn't quite there.
"Fifth you'd say it's okay after what we've been through the last couple of days, but the gap is massive. One and a half seconds is just massive. That's all I have to say, really."
He added: "It's disappointing to be where we are. I mean, fifth is a reasonable position but 1.5 seconds off the pace... Even if I got the lap perfect it would have been a couple of tenths.
"In two hours I will be all positive and hoping that we can do well, but at the moment I'm disappointed with where we are."
Teammate Lewis Hamilton was equally disappointed with his team's performance, the Briton hoping for a wet race to try to get a good result after finishing down in tenth today.
"It's disappointing that we are so far behind, and we didn't really do a good job in qualifying. I hope it rains," he said.