Porsche 911 (991.1) Carrera 4 GTS Cabriolet – the last naturally aspirated Carrera, Swiss factory specification, Swiss Package 991
Some 911s need an explanation; this one needs context: The 991.1 GTS marked the end of the naturally aspirated Carrera era in 2016. After that, the turbo came for everyone. The 3.8-liter flat-six, producing 316 kW / 430 PS, revs up to 7,600 rpm, responds to the throttle without compromise, and—thanks to the standard sport exhaust system—sounds exactly how you imagine a 911 would sound before you actually hear it. When driven with the top down, this engine is the reason why the 991.1 GTS models have held their value more steadily than their successors for years.
This particular car was built ex-factory in the Swiss specification and delivered with the Swiss Package 991, which Porsche offered exclusively for the Swiss market. It was first registered in March 2015 to a law firm in western Switzerland, delivered and initially serviced by the local Porsche partner. It was subsequently owned by a Goodyear manager in Luxembourg, who drove the car primarily to his summer residence in Provence and had it serviced there at the Porsche Center in Avignon strictly according to the maintenance schedule—every scheduled service is documented in the service booklet. Since 2022, it has been in Cologne, serviced exclusively by the Porsche Center Cologne. An all-wheel-drive GTS Cabriolet in Swiss factory specification, deep black metallic, the last naturally aspirated model: this combination is virtually unheard of on the market.
The vehicle’s history is complete and verified. The service record has been maintained exclusively at Porsche, consistently Porsche Approved, and is currently extended through September 2027. The Porsche Center Cologne has reviewed the complete service history; minor components such as the shock absorbers were replaced under the Approved warranty. The complete documentation is available for inspection. In recent years, the car has only been driven in the summer, washed only by hand, and there has never been any smoking inside.
Inside, it features the GTS Interior Package with Alcantara, carmine-red dials, and color-contrast seatbelts, plus adaptive Sport Seats Plus with 18-way adjustment and memory function, whose backs are painted to match the car’s exterior color. Carbon fiber accents on the gearshift lever, center console, door panels, and dashboard; illuminated carbon fiber door sills; Sport Design steering wheel; and BOSE Surround Sound. Regarding driving dynamics: PDK, Sport Chrono, PASM, PTV Plus, Sport Design front splitter, PDLS Plus, front and rear Park Assist with rearview camera, and an electric front spoiler.
The vehicle comes with eight wheels: two complete sets on 20-inch 911 Turbo S rims with center lock, painted in satin black. Summer tires are Michelin Pilot Sport, plus a complete set of winter wheels with reputable tires approved by the manufacturer. Only the summer set has been driven.
Transparency regarding the vehicle’s condition: In August 2026, the parked car was struck by a neighbor backing out of a parking space; the damage affects the rear bumper side panel, the right side panel, and the right rear wheel. Two expert reports fully document the damage; the liability insurance adjuster also certifies that the vehicle is in exceptionally good overall condition relative to its age and mileage, with no impairment to roadworthiness or operational safety. The car is being sold intentionally unrepaired; the damage is factored into the price (see photo); both reports are available for review by any serious prospective buyer. Private sale with no warranty.
Viewing and test drive in Cologne by appointment.
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