Contrary to what many of its competitors are doing, Mercedes may be looking to increase its investment in F1. The auto giant is reportedly in talks to take an interest in Brawn GP.A statement from Mercedes says there will be no impact upon its current relationship with McLaren.The BBC reports McLaren is “supportive.” Brawn refused comment.Liuzzi in for Force IndiaForce India have named reserve driver Vitantonio Liuzzi to replace the departing Giancarlo Fisichella for the remainder of the seas...