Toyota Formula One boss Tsutomu Tomita will stand down at the end of June and be replaced by Tadashi Yamashina.
Germany's Timo Glock will race for the Toyota Formula One team next season, replacing compatriot Ralf Schumacher. Cologne-based Toyota said in a statement on Monday that the 25-year-old had signed a multi-year deal. He will partner Italian Jarno Trulli.
The contract extension will keep him at the Toyota Formula One team to the end of 2009.