David Coulthard was also on track for the Milton-Keynes based outfit, but finished the day right at the bottom of the times. DC will conclude
Red Bull's programme on Friday.
Further down the order, Pedro de la Rosa was sixth in the second
McLaren MP4-21, with Nelson Piquet seventh and multiple world champion,
Michael Schumacher eighth. All three used the slick tyres on-and-off and there was little between them on the timesheets.
Piquet, who also worked on start procedures without traction control, and chassis set-ups without electronic driver aids was pleased with his day's running: "We had a good day, made progress with the car and I did a lot of laps, which is always very positive," he noted.
"I think this was an encouraging session for us, and the team collected some interesting data, which was the main objective."
Renault's chief test engineer, Christian Silk was also happy with their final day of testing: "We worked well. The team skipped its lunch break to get the most out of our final day of testing, so thank you to everybody! The team never lets its head go down this year, in spite of all the difficulties we faced, and once again today they gave the absolute maximum. We collected a lot of interesting data today, and our focus is already firmly on 2008."
Of the rest,
Honda's
Rubens Barrichello was ninth, with Heidfeld tenth and then
Williams's
Nico Rosberg. Rosberg notched up 65 laps, while
Kazuki Nakajima, who was 15th overall, did just 39, the least of any one runner on track.
"Kazuki rejoined the test today and worked on set-up developments with Nico Rosberg in the interim FW29Bs," explained Williams test team manager, Dickie Stanford. "Although hindered by several red flags, it was another helpful day for the team. Both drivers will return tomorrow for the final test day of 2007."
In between the Williams' of Rosberg and Nakajima were the two Toro Rosso's of
Sebastian Vettel and
Sebastien Bourdais and the
Toyota of
Jarno Trulli.