[1] The first was for Queensland racing driver Glyn Scott,[1] who fitted the car with a "spare" 1600cc Cosworth FVA engine he bought from Piers Courage after the 1968 Tasman Series.

A Formula 2 version was built for Ian Ferguson[1] and a Holden powered hillclimb car was produced for Barry Garner.

Joyce designed his own magnesium hub carries, suspension members, wheels, steering, and so on, and fabricated them in his own workshops or had them manufactured by Australian companies.

The design programme for the Bowin P3 included as much planning for economic production and lifetime maintenance as for any other phase of the project.

The actual chassis projects forwards as far as the front suspension location, but the pedals, master cylinders, radiator, and so on are hung on outriggers built on to the monocoque.

The seat is also part of the chassis, and provision was made in its location for the installation of an auxiliary fuel tank to add to the twin 12-imperial-gallon (55 L; 14 US gal) cavities provided on each side.

A neat touch is the flared-out sides to the cockpit, which Joyce hoped would overcome most of the driving problems associated with lack of elbow-room.

The aerodynamics of the monocoque design basically hinged on a constant upward sloping flat line that carried through from the mouth to behind the driver's head.

The front suspension of the car was independent, with double wishbones operating entirely on adjustable rod-ends and a separate anti-roll bar.

The rear suspension was fully independent, with double wishbone and radius arm configuration, incorporating anti-squat characteristics.

The car's cooling system included Crossflow radiator low-mounted in nose, connected to power unit by allow pipes and flexible hoses.