Test, Day One   25 February 2008

Drivers:       Mark Webber                           David CoulthardCars:          RB4 - 01 & 02                         RB4 - 02Time:          1:23.115, Laps: 71                    1:24.826, Laps: 25Fastest Lap:  L. Hamilton: 1:22.276

Circuit length: 4.655 km

Mark and David were both driving yesterday for the first day of Red Bull Racing's final test ahead of the F1 season.

Both drivers followed a similar programme, focusing on mechanical set-up, brake development work and general pre-race preparation.

Testing was once again affected by adverse weather conditions, as the track was wet in the morning, although it dried by the afternoon.

Mark Webber had a useful day at the wheel of his car before swapping to drive the 02 chassis towards close of play. This was to get a base-line reading from the current set-up of the 02 chassis, before new development parts are added to it ahead of the second day of testing.