 After some speculation of Webber joining the Renault team , which was run by Briatore , it was announced on 7 August 2006 that Webber would join Red Bull Racing for 2007 to partner David Coulthard , replacing former Jaguar Racing teammate Christian Klien . It is rumoured that Briatore arranged an agreement with Red Bull that , if they offered Webber a race seat , Renault would supply them with engines . On 26 January 2007 the new Red Bull RB3 challenger was unveiled in Spain , and Webber drove the car in a shakedown in Barcelona on the same day . The car featured heavy revisions to the team 's previous cars and looked very much like designer Adrian Newey 's previous cars which had either won or come close to the World Title . The car was fitted with a Renault <unk> engine . 
