Porsche 911 Turbo 3.3

The JCT 600 sales invoice and PCGB Certificate of Authenticity (CoA) reveal the order details. Robertson selected Grand Prix White, a color that first debuted on the Carrera 2.7 RS, with an electrically operated passenger door mirror, air conditioning, and Recaro sport seats. Perhaps his best choice that day was to select the en vogue red MacLachlan tartan interior. The rich wool fabric woven in red, blue, black, and a touch of green covered the sport seat inserts, rear seats, door panels, and rear side panels offering an incredible contrast to the monochomatic exterior livery. The invoice and Certificate of Authenticity both list the engine serial number (6780301), with the CoA also recording the transmission serial number (7800268)—remarkably, this carefully preserved example still retains both original components.

A statement from Robertson reveals that he took delivery of the car in February 1978. Under his careful 37-year stewardship, the car was not driven if rain was forecast, and “if when out, I came across newly chipped roads, I would turn back and find another route.” Quite the dedicated owner! He retained the car until 2015 and at that time stated that “The paint, panels, and underside are 100% original.” That year the 911 Turbo was sold via Tom Hartley with just 14,701 miles on the odometer (a scant 397 miles per year) to Rob Marsden of Surrey. While with Hartley, two separate service invoices record an engine-out service down to the head studs at BS Motorsport that totaled just under £14,000. During Marsden’s ownership period the Porsche Club Great Britain member would have Precision Porsche Ltd. of East Sussex look after the car with engine servicing, shifter bushing repairs, new sunroof cables, new rear shock absorbers, finally treating the car to an “OEM look” stainless steel exhaust system.

Later, Robertson passed the well-kept, low mileage Turbo to the consignor—just its third owner in the past 47 years. After acquiring the prized Porsche, it was sent to Porsche specialist Charles Ivey in May of 2025 at 19,941 miles for a new alternator, battery, and four fresh and correct Pirelli Cinturato P7 tires fitted to its 16-inch forged Fuchs wheels.

Today, this right-hand-drive 3.3-liter 911 Turbo might very well be the best available on the market ticking all the right boxes. It is a matching-numbers example that features long-term fastidious original ownership and low miles accrued due to careful use. It wears its original coat of Grand Prix White over an interior color combination with Recaro sport seats that is among the most desirable imaginable. Its short succession of three owners is well documented as are the service visits to Porsche specialists, the most recent of which occurred in May 2025. Early 3.3-liter 911 Turbos are rare to find in such condition and impressive specification making this example a standout opportunity for collectors seeking authenticity, provenance, and performance in one exceptional package.