Whakakī i te rerenga e whai ake nei: I hokona a Jaguar i te marama o Noema 2004 e te kamupene inu kaha o Austria a Red Bull, a ka whakaingoatia hei Red Bull Racing. I te wa o te whakamātautau hotoke i te tau 2005, i whakamatautauria e Klien mo Red Bull Racing i te taha o Vitantonio Liuzzi me David Coulthard. I whakawhiwhia a Klien ki te noho tuarua i Red Bull, i te taha o Coulthard. I timata a Klien i te tau me nga tohu i nga whakataetae tuatahi e rua i mua i tana reti i te tau 2010.
Ko Bahrain i mua i te tīmatanga o te whakataetae nā tētahi raruraru hiko.