Bullivant raced the Capri until 1979, following which it was sold to Graham Baker, I guess around 1980 or '81. Bullivant himself was maintaining Jim Richards' Falcon XC Sports Sedan by this stage.
Baker was a bloody good driver and had the funding to get the most out of the Capri. You can see the changes he'd made, notably in ride height and wheel width. He fitted the car with McLaren wheels, which I assume came off the PDL Mustang, as he'd previously raced this car for a short time during the 1980/81 OSCA season.
The modifications made to the previously attractive flares, whereby they've been cut away and had rudimentary extensions added weren't the most aesthetic improvement, but it sure did go well. In Baker's hands, this car was probably the fastest sedan in New Zealand, and proved quicker than the Capris of Wayne Huxford and Inky Tulloch on several occasions.