Toyota TF104

The Toyota TF104 was a Formula One car used by the Toyota F1 team during the 2004 season. It was the third and final Toyota designed by Gustav Brunner and René Hilhorst, an evolutionary step from the TF103 with Luca Marmorini leading the engine design. Brunner said it shared not a single part with the TF103, with every internal component redesigned, a lighter car and a great leap forward aerodynamically. Critics found the approach unambitious, and Brunner was dismissed midway through the season and replaced by Mike Gascoyne, who introduced the revised TF104B chassis at the German Grand Prix before freezing development to concentrate on the TF105. The car began the season with Olivier Panis and Cristiano da Matta, and by the end both had been replaced by Jarno Trulli and Ricardo Zonta.