In six years of competitive kart racing from 1992–98, he won five West Australian state titles.

In 2006, Murchison was selected to drive for the newly formed A1 Team Singapore for the A1 Grand Prix of Nations 2006-7 season.

He has three V8 starts to his name, with the fourth - the 2007 Bathurst 1000 - cut short due to a severe accident for co-driver Damien White in Friday practice.

Murchison was born in Singapore in 1980, but moved with his family to Perth, Australia, in 1991, where he began his motor-racing career.

Murchison remains based in Western Australia, running a company specialising in RV fittings.