Cika wannan jumla: Jaguar an saya a watan Nuwamba 2004 ta kamfanin samar da makamashi na Austrian Red Bull kuma an sake masa suna Red Bull Racing. A lokacin gwajin hunturu a cikin 2005, Klien ya gwada sau da yawa don Red Bull Racing tare da Vitantonio Liuzzi da David Coulthard. Klien ya sami wurin zama na biyu a Red Bull, tare da Coulthard. Klien ya fara shekara tare da maki a cikin tsere biyu na farko kafin ya yi ritaya a shekara ta
Bahrain kafin tseren ya fara saboda matsalar wutar lantarki.