Honda complete three-day Jerez test

The Japanese squad worked alone during the three days, with Jenson Button and Rubens Barrichello being joined by test driver Alex Wurz as the team tried their latest aerodynamic and mechanical developments.

Each driver was at the wheel of the RA108 for two days, covering a total of 603 laps, over 2670 kms of running. No times were issued by the team.

Button believes the new parts have allowed the team to make a step forward before the first race.

"Our final test before the start of the season went well this week and it was very useful to evaluate the new developments that we have on the car," said Button. "We completed some long run work in preparation for the race weekends and I was pleased that we have made a step forward in terms of performance.

"We are realistic about our expectations for the first few races and know that we still have a long way to go."

Barrichello added: "I drove the car in the launch specification and with the new aero package this week, which was very useful to provide a direct performance comparison.

"Today I completed a lot of running with the new developments which was very beneficial. It is difficult to know where we are compared to the competition as we were testing privately, but I definitely feel we have taken a step in the right direction.

"We have improved the car and I feel comfortable that we are well prepared for the start of the season."