Fisken began his career as an apprentice mechanic with the famous Scottish restorer and dealer of pre-war motorcars, Bunty Scott-Moncrieff, while also trying his luck at rallycross in old cars he prepared.

With continuing business success, Fisken decided to turn his attention back to racing – both in historic cars and more modern machinery.

In 1998, Fisken managed the feat of winning his class in both the Tour Auto and the Monaco Historic Grand Prix as well as finish a competitive second overall in the British Empire Trophy at Silverstone in a Porsche 962 Group C car.

Mechanical problems plagued the 2006 season in which the best result possible was a first in class in the Shell Historic Ferrari Challenge and a fourth in the Donington 1000 km driving an LMP1 works Courage.

2007 saw Fisken race for the complete year in the Le Mans Series for Larbre Competition in the Aston Martin DBR9 with a best result being first in class in the Mille Milhas, Interlagos, Brazil.