Coulthard started his career in karts before moving into Formula Ford in New Zealand. A trip to the Australian Grand Prix support races at Albert Park in 2002 proved his worth, and he jetted to England to compete in Formula Renault.
Coulthard joined the Porsche Carrera Cup, finishing third and best rookie in 2004, then was crowned champ in 2005.
He signed to drive with Paul Morris Motorsports, sharing a car with Alan Gurr and Steve Ellery in 2006/2007.
In 2008 he linked with countryman Paul Cruickshank and an ex-Craig Lowndes BF Falcon and finished in the top 10 on six separate occasions.
In 2009 he returned with PCR and a brand new Triple Eight-built FG Falcon taking the car to his first-ever podium finish at Symmons Plains before moving across to Walkinshaw Racing in 2010 for two seasons, then joining BJR in 2012.
2013 proved to be a breakthrough year for Coulthard – two pole positions and 12 podium finishes. His sixth place finish in the drivers’ championship remains his career best.
Coulthard continued his momentum in 2014 scoring 24 top ten finishes, three pole positions and six podiums; 2015 was highlighted with his first win at a street circuit at the season opening Clipsal 500.
2017 is Coulthard’s second year at DJR Team Penske – he will be hunting for the team’s first win after earning a pole position last year at the season-opening Adelaide race and standing on the podium twice, at Phillip Island and Winton.