2005 Toyota TF105

Toyota Beats other Teams to the Punch: Unveiling the Toyota TF105

The TF105 was built in accordance with the new regulations instituted for the 2005 season. 'The biggest changes to the chassis were aerodynamic,' said chassis department technical director Mike Gascoyne, 'with the new regulations we lost 25% downforce, but we will do everything we can to regain downforce before the Australian GP and throughout the rest of the season.'

Mid-way through the season, Panasonic Toyota entered the revised TF104B in the July 2004 German GP, and then made the strategic decision to freeze all further development of the TF104B. For the remainder of the season, Mike Gascoyne concentrated on developing the TF105, all the while understanding the risk of not being sure of the final car regulations. 'Last season was really tough on us, but it gave us the chance to start early on incorporating the upcoming new technical regulations for the 2005 season. I think that put us in a superior position compared to our rivals.'

Chief designer Gustav Brunner said, 'It's an evolution in terms of mechanism. We went to great lengths to reduce the weight from the TF104 to the TF104B. But it was an extremely natural evolution to the TF105. The biggest changes were made in more detailed areas. We made some terrific improvements in the car's mechanics.'

2005 Toyota TF105
With new regulations for the 2005 season stipulating one engine for two races, the Panasonic Toyota engine department is in for a great challenge. During the 2004 season, the team was able to extend the life of the RVX-04 engine from 400Km to 800Km, but the new rules forced Luca Marmorini and his engine department technical team to find yet another two-fold increase in engine reliability. The new RVX-05 has a lifespan of almost 1500Km - a design that should hold up to the rigors of two grand prix races.

Also new for the 2005 season is the driving combination of Jarno Trulli and Ralf Schumacher. Olivier Panis continues to contribute to car development as test driver, and Ricardo Zonta drives the third car during Friday practice sessions.

Source - Toyota / Panasonic
2005 Season
Points: 88
Position: 4
Engine: Toyota RVX-05
2009 Entry: TF109
2008 Entry: TF108
2007 Entry: TF107
2006 Entry: TF106
2004 Entry: TF104
2003 Entry: TF103
2002 Entry: TF102

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2005 Toyota TF105

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