Red Bull wraps up 2008 season at Jerez

Today was the final day of testing this year and both Sebs had good days, with Vettel quickest at the end of the session. Both drivers worked on evaluating various mechanical set-up changes in conjunction with the 2009 specification Bridgestone slick tyres and the team leaves southern Spain with plenty of data and a good understanding of next season's rubber.

The RB4s ran completely reliably all day and overnight work on Vettel's car meant it was more to his liking today.

At the end of the day, Vettel said. "We've had pretty smooth running at this test and have completed a lot of mileage before the end of the year. I think we've done everything we could here, learning about the tyres and next year's regulations and hopefully we will start next year with a car strong enough to challenge the big boys."