Klien secured the second race seat at Red Bull , alongside Coulthard .
During winter testing in 2005 , Klien tested several times for Red Bull Racing alongside Vitantonio Liuzzi and David Coulthard .
Klien secured the second race seat at Red Bull Racing   , alongside David Coulthard .
During winter testing in 2005 , Klien tested several times for Red Bull Racing alongside Vitantonio Liuzzi and David Coulthard .