Testing times from Barcelona (Thursday 3 May)
1. COULTHARD Red Bull 1m21.066s
2. DE LA ROSA McLaren 1m21.267s
3. MASSA Ferrari 1m21.483s
4. FISICHELLA Renault 1m21.876s
5. KUBICA BMW 1m22.098s
6. SCHUMACHER Toyota 1m22.359s
7. KLIEN HONDA 1m22.807s
David Coulthard set a surprise fastest time for Red Bull on the final day of this week's Barcelona test.
The Scot's 1m21.066s lap was a new record for the revised Catalunya track, beating the mark set by Kimi Raikkonen on Monday.
Ferrari had dominated the first three days of the test, but had a less successful time today, with Felipe Massa's car requiring a tow back to the pits after encountering hydraulic problems this morning.
Massa rejoined later in the session, but was only third quickest, behind McLaren's Pedro de la Rosa, who also stopped with mechanical issues early on.
Only seven teams stayed on for the additional test day, which had been added to the schedule as compensation for Tuesday's rain-hit session.
Ironically, the rain returned this afternoon, persuading the teams to end the test one hour early.
The biggest news of the day was the appearance of a pair of vertical, curving winglets on the top of the Honda's nose section.
Quickly nicknamed 'Dumbo ears' after the cartoon elephant, the devices did not produce a step forward and were removed later in the test.