Garth Tander and Taz Douglas have received 25 point penalties for their parts in separate incidents at Winton Motor Raceway yesterday.
Factory Holden driver Tander received his championship points penalty after an admission of careless driving on his former team-mate Rick Kelly.
Douglas was also handed a 25 point penalty for contact with The Bottle-O Racing's David Reynolds.
Neither Tander or Douglas' championship positions were affected by the loss of points.
In other penalties, championship leader Jamie Whincup has been stung with a $4000 fine from the stewards, suspended until May 31 next year, after the TeamVodafone driver “failed to punctually attend a prescribed media appearances and remain for the duration of those commitments.”
Race 28 of the V8 Supercars Championship begins at 1535.