Even the cynics were astonished when Jenson Button cut the timing beam on the Circuit de Catalunya pit straight on Wednesday.
Low fuel run to impress potential sponsors or not, the Brawn GP had circulated the Barcelona layout in an unofficial 1:19.1.
Last April for the Spanish Grand Prix at the same venue, Robert Kubica's BMW was the fastest car in the low-fuel Q2 phase - a 1min20.5.
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