The Shellsport Series was the premiere category of the 1980s, with Grant winning nine races in the 1984 season. He was the outright winner of the 2010 South Island Endurance Racing Drivers Club series (SIERDC) in a Porsche 996 Cup Car. Grant has also won the Rally of Asia twice. Today, Grant is passionate about his Porsche and is currently racing a Porsche GT4 in the SIERDC series. He created and ran the Race to the Sky event from 1998 to 2007.

Grant Aitken - 2016 Porsche Cayman GT4

The Shellsport Series was the premiere category of the 1980s, with Grant winning nine races in the 1984 season. He was the outright winner of the 2010 South Island Endurance Racing Drivers Club series (SIERDC) in a Porsche 996 Cup Car. Grant has also won the Rally of Asia twice. Today, Grant is passionate about his Porsche and is currently racing a Porsche GT4 in the SIERDC series. He created and ran the Race to the Sky event from 1998 to 2007.

2016 Porsche Cayman GT4:

This FIA GT4 category factory race car weighs 1300kg and has a 3.8-litre flat six 385hp engine with 420Nm torque and max rpm 7,800. It runs a PDK dual clutch transmission, with aluminium mono-bloc six piston front, four rear brakes. The tyres are Porsche 9J and 10.5J x18 rims with Michelin slicks. Its bodywork includes a fully-integrated FIA roll cage, carbon rear wing and a factory-fitted three piston air jack system.
This category is growing rapidly worldwide with factory GT4 cars being produced by Porsche, McLaren, Aston Martin and Ginetta at around half the cost of FIA GT3 cars.