Jenson Button was not impressed with his performance in qualifying after finishing in sixth place at Valencia on Saturday.
With the track the hottest it had been all weekend, temperature hovering around the mid 40'C, the Brit struggled with the balance of his MP4-26.
A lack of grid and "massive" oversteer resulting in him only managing a 1:37.645, which put him 0.670s behind pole-sitter Sebastian Vettel.
"It's not very good," he told the BBC.
"The car felt pretty good in Q2 but then in Q3, I had massive oversteer. I don't know why but I just couldn't get any rear grip.
"The car was great this morning in practice but with the heat maybe our balance isn't working because of the track temperature. I just didn't expect it.
"It's not great but we'll still have a good race."
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