The sanction followed an incident during the final stages of the race.

Whincup and co-driver Paul Dumbrell have been deemed to have finished the race in 11th.

“The Supercars National Court of Appeal has dismissed the Appeal submitted by Triple Eight Race Engineering (Australia) Pty Ltd in relation to the time penalty imposed by the Stewards in the 2016 Supercheap Auto Bathurst 1000,” the Confederation of Australian Motor Sport said in a statement.

“The Appeal Hearing was heard at the County Court of Victoria this evening, relating to the severity of the 15 second post-race time penalty handed down to Car #88 (Jamie Whincup/Paul Dumbrell) for Careless Driving after causing contact with Car #33 (Scott McLaughlin/David Wall) at Turn 21 on Lap 150.

“The Chairman of the Court announced that the appeal was dismissed at 7:53pm, after debate regarding whether Triple Eight had a right of appeal against a decision made by the Stewards during a race.”