Winterbottom and Noske finished 11th at Sandown, before qualifying 16th at the 2003 Bathurst 1000 and then retiring at three-quarter distance whilst running in third with engine problems.

The lowlight was at the V8 Supercars China Round in which Winterbottom avoided injury after a loose drain cover penetrated the chassis floor and damaged the driver's seat.

By the midpoint of the season, Winterbottom had climbed from 22nd to third in the championship standings and added two further podium finishes with a third at Symmons Plains Raceway and second at Phillip Island.

Winterbottom's highlight of 2008 was a dominant round victory at the BigPond 400 at Wanneroo's Barbagallo Raceway in Perth, Western Australia.

With further good results at Adelaide, Eastern Creek, Surfers Paradise and Symmons Plains, he placed second in the championship, just behind his former Formula Ford rival Whincup.

[2] Winterbottom experienced a challenging season, finishing in fifth position in the championship, eight places ahead of team-mate Steven Richards.

He scored two wins, at the Gold Coast 600 with international co-driver Richard Lyons and in the final race of the year at the Sydney 500.

Before the final round of the championship, the Sydney 500 on the Homebush Street Circuit, Winterbottom was in second, but fell behind Craig Lowndes to finish third.

At the 2014 Supercheap Auto Bathurst 1000, Winterbottom was a chance of going back-to-back late in the race, until an incident with an attacking Craig Lowndes resulted in him dropping back, and eventually recovering to take a fifth-place finish.

Winterbottom then achieved eight race wins in the middle part of the championship year, including a clean-sweep of the 2015 Castrol Edge Townsville 400.

Driving with Steve Owen, Winterbottom then went on to increase his lead with his ninth win of the year at the 2015 Wilson Security Sandown 500, before finishing second at the 2015 Supercheap Auto Bathurst 1000.

Despite not winning a race after Sandown, Winterbottom held on to secure his first championship title in a showdown against Craig Lowndes at the final round, the Sydney 500.

[5] Winterbottom had a slow start to his championship defence, not achieving a podium finish until the fifth race of the season at Symmons Plains.

[6] Two podiums at Winton gave Winterbottom the championship lead, before a poor event in Darwin dropped him back in the standings.

However, a decline in pace in the second half of the season left Winterbottom to finish sixth in the championship, with only one further race victory, at the Auckland SuperSprint.

Highlights included podiums at the Phillip Island 500, Townsville 400 and Auckland SuperSprint, while the lowlight was crashing out of the Bathurst 1000 on the penultimate lap while battling for fifth place.

Winterbottom secured sixth in the championship for the second consecutive year, albeit only after Craig Lowndes' late retirement at the season-ending Newcastle 500.

Winterbottom returned to Brazil in 2018, finishing eleventh at the Autódromo José Carlos Pace driving with Átila Abreu, despite starting from the rear of the grid.

Educated at Doonside Technology High School, Winterbottom took up the sport of Soccer from the age of six, and by eleven was competing with a state level team, (Blacktown United) in matches across New South Wales.

1 Brodie Kostecki 9 Jack Le Brocq 2 Ryan Wood 25 Chaz Mostert 3 Aaron Love 7 James Courtney 4 Cameron Hill 10 Nick Percat 6 Cam Waters 55 Thomas Randle 8 Andre Heimgartner 14 Bryce Fullwood 12 Jaxon Evans 96 Macauley Jones 11 Anton de Pasquale 17 Will Davison 18 Mark Winterbottom 20 David Reynolds 19 Matthew Payne 26 Richie Stanaway 23 Tim Slade 31 James Golding 87 Will Brown 88 Broc Feeney