The Honda Racing F1 Team completed its 2005 testing programme at the Circuito de Jerez in Southern Spain on Friday. Jenson Button, Anthony Davidson and Adam Carroll shared the testing responsibilities this week in the team's two Concept cars with the main focus of testing continuing to be the development of the chassis and engine, alongside aero and tyre evaluations.

The team has now completed over 7000 kms in the three weeks of winter testing, with almost 6000 kms of running on the new V8 Honda engine. Reliability has been good throughout the programme and the development of the new engine and hybrid car is encouraging.

Anthony and Adam began the test on Wednesday in the two Concept cars 078-07 and 078-08 respectively. Both drivers ran through aerodynamic evaluations alongside chassis and engine set-up work. Anthony completed 93 laps and Adam completed 85 laps in what was his first drive in a V8 engined F1 car.

Thursday began in damp conditions following an early rain shower. It was not quite wet enough to run on intermediate tyres, which, combined with the cold conditions, meant that no real testing was completed until mid-morning. When they were able to go out, Anthony concentrated on a series of tyre and compound evaluations with Adam working on a chassis set-up programme and a short aero evaluation. Anthony completed an impressive 115 laps with Adam's final lap tally being 92 laps.

Jenson joined the test on Friday taking over from Adam in chassis 078-08. His early runs were spent finding a good balance in the car before he began looking at various chassis set-up options. A couple of minor issues and a gearbox change interrupted his running although Jenson did complete 86 laps in total. Anthony concentrated on a tyre evaluation on longer runs in the morning session, followed by a chassis set-up programme. He completed a total of 81 laps.

Jenson  remained in Jerez on Saturday to complete a Michelin wet tyre programme.