Mark Webber maintained his place at the top of the times sheets in the second practice session at the Circuit de Catalunya.
He ended the session just four hundredths of a second quicker than Lewis Hamilton’s McLaren.
Sebastian Vettel set a rapid 1’22.826 on soft tyres and came close to beating it on his next lap.
But Webber went over a third of a second faster when he came out of the pits a few minutes later.
Hamilton came very close to beating his time in the upgraded McLaren but fell short after matching the Red Bull through the first two sectors.
The other McLaren of Jenson Button was fourth.
Fernando Alonso took fifth with a 1’23.568 despite being held up by Nick Heidfeld’s Renault during his lap.
Team mate Felipe Massa had a trip into the gravel at turn five during the session and ended up eighth behind the Mercedes.
Narain Karthikeyan also went off but was able to get back on the track.
He frustrated Hamilton later in the session, holding him up at turn five. It was one of several instances of drivers being held up during a busy 90 minutes’ running.
2011 Spanish Grand Prix
- 2011 Spanish Grand Prix: complete race weekend review
- Vote for the best driver of the Spanish Grand Prix weekend
- Red Bull: Vettel soaks up pressure for fourth win
- McLaren: Hamilton strong on “disastrous” Pirellis
- Ferrari: Alonso stars, Massa struggles
- Mercedes: Rosberg wanted Schumacher to let him pass
- Renault: Heidfeld eighth after “worst fire of my career”
- Sauber: Kobayashi gets point after puncture
- Williams: Maldonado reaches Q3 but still no points
- Force India hold back on aerodynamic upgrade
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