Just before the start of pre-season testing at Jerez, Williams has unveiled its 2012 contender, the FW34.

2012 marks the team's 35th year in the sport, which it will do with a revitalised line-up, having just experienced its worst season in living memory.

The mechanical and aerodynamic design and development direction of the FW34 has been driven by a new technical leadership. Guided by Technical Director Mike Coughlan, this year's car takes on a fresh design philosophy. Revised FIA technical regulations - of which the most significant are bans on exhaust blowing and exotic engine mapping and a drop in nose height, the FW34 carries fewer than five per cent of the parts from last year's FW33.

The team will also race with a new driver pairing in 2012 as Bruno Senna partners Pastor Maldonado after a considered winter evaluation process. Finn Valtteri Bottas completes the driver line up as Official Reserve Driver, taking part in most of the season's Friday practice sessions.

Williams rejoins Renault for its engine partnership. Williams and Renault enjoyed a nine-year association between 1989 and 1997 which produced four Drivers' and five Constructors' titles and 63 race wins. The French manufacturer's RS27 V8 power unit is renowned for its drivability, flexibility and durability and will provide the FW34 with a strong performance platform for the forthcoming season.

Powering the team's efforts in this year's championship will be a broad partner group. Existing partners, including Petróleos de Venezuela S.A. (PDVSA), Venezuelan Tourism, Randstad, Thomson Reuters, Ridge Solutions, Hatch and McGregor will be joined by new additions confirmed today. Gillette, Embratel, Head & Shoulders, OGX and MRV, together with Michael Johnson Performance announced in January, will all be supporting the team as it works towards a competitive season of Formula One motor racing.

"One could say that looking at the Williams F1 Team today we are off to a truly fresh start," said Frank Williams. "We have a new car, new driver line up, new engine and new senior personnel. We also have a number of new partners who have joined the team in the past few months. I'd like to take this opportunity to welcome them formally and sincerely wish that they have an enjoyable and, most importantly, a valuable experience with us. The team has had a good winter at the factory and we feel ready and strong for the fight."

"We are really looking forward to this season and from a personal perspective I can't wait to get the FW34 on to the race track," added Chief Operations Engineer, Mark Gillan. "The factory has worked extremely hard over the winter to ensure that the car met its design, build and rig test targets and we start testing with the car prepared to a high standard. We've worked in close co-operation with all of our partners to achieve that, including Renault Sport F1. In the run-up to Australia, we will be working hard with our exciting new driver line-up to ensure that we maximise and unlock the full potential of the FW34. It is imperative that we demonstrate a continuous improvement in our performance and deliver results throughout the season."