Brown wins Adelaide 500 in Supercars demolition derby

Will Brown has claimed the Adelaide 500 after the final race of the Supercars season descended into crash-filled chaos.

The newly crowned Supercars champion fought back from 22nd on the grid on Sunday after he was turned around by former teammate Brodie Kostecki at turn seven on lap nine.

With 16 laps to go, Brown was given a huge favour by his Triple Eight teammate Broc Feeney, who shunted race leader Chaz Mostert.

As the drivers braked into turn six, Feeney clipped Mostert's back right and sent him spinning into the barrier.

With Mostert's damaged Ford Mustang lacking in pace, Brown closed the gap and overtook the Walkinshaw Andretti United man on the Brock Straight with 12 laps left.

Mostert eventually limped over the line in second place, with Tickford's Thomas Randle third.

Mostert and Feeney had been locked in an intense duel from the front row until Feeney was handed a 15-second penalty for an unsafe release in the pit lane.

Feeney was given another 15-second penalty for his bump on Mostert, resulting in him dropping to seventh, despite crossing the line first.

The 22-year-old had good company in the disciplinary corner.

Kostecki, Cam Waters, Anton De Pasquale, Ryan Wood, Aaron Love and Mark Winterbottom - in his last race as a full-time driver - all copped penalties for whacking rival drivers in a chaotic season finale.

Reigning Adelaide 500 champion Matt Payne was also sent headfirst into the tyre wall on turn 11 by Nick Percat, burrowing under the barrier and losing his bonnet in the process.

Payne dropped to the back of the pack while his car was repaired and the sole safety car of the race ran out on the track.

Kai Allen was also dogged by damage to the back of his Mustang after contact from James Courtney in lap one.

The Super2 runner-up was elevated into Richie Stanaway's seat after the New Zealander was ruled out with concussion after his own crash at turn eight on Friday.

Only 23 cars started the race after Jaxon Evans was also diagnosed with concussion following an ugly high-speed crash in qualifying.

RACE 24 RESULTS:

1. Will Brown (Triple Eight Race Engineering)

2. Chaz Mostert (Walkinshaw Andretti United)

3. Thomas Randle (Tickford Racing)

4. Will Davison (Dick Johnson Racing)

5. Nick Percat (Matt Stone Racing)

CHAMPIONSHIP STANDINGS:

1. Will Brown - 3060 pts

2. Broc Feeney - 2838 pts

3. Chaz Mostert - 2667 pts

4. Cam Waters - 2551 pts

5. Thomas Randle - 2032 pts