This Porsche 991 Cabriolet is an exclusive one-off and was built on the basis of a 911 Carrera 4S in 2016 for a prominent member of the Porsche family. The client is in the direct line of a well-known Porsche personality who was largely responsible for the design of the first Porsche 911. This “project” also included a 991 4S Coupé to the same specification for the same client. These two 991s were equipped with a naturally aspirated engine from the 991 GT3 RS with 4.0 litres of displacement and 500 hp along with the associated PDK dual-clutch transmission. The unique feature in this case is the GT3 RS drive in a convertible body, that did not exist in series production. Hence, this Porsche 911 is the only one “GT3 RS” Cabriolet. An additional special of both cars is the combination of the GT3 RS drive with the all-wheel drive of the 991 4S, which was not available in the 911 R or the other GT3 variants. They had always a conventional rear-wheel drive. The conversion measures go far beyond what is normally possible in the course of customisation at the Porsche factory. Due to model policy and corporate compliance, the special conversion was not carried out by Porsche itself but by a renowned German specialist company for engine and vehicle technology. In addition to the development work, this project included the conversion and the necessary adaptation or configuration of the 991 4S “basis” to the GT3 RS components. This mainly concerned the engine, gearbox, exhaust system, tailpipe, the wheel and tyre combination as well as various special equipment. The required components were supplied by Porsche, as they were not freely available. The total cost of this 991 cars, including the GT3 RS components and base vehicle, can be put at just around EUR 400,000 for each of the two vehicles. Documents proving the special conversion and first ownership are available. Likewise an Austrian individual permission for registration. The first registration was in Salzburg, Austria. The car is in second-hand now and has a low mileage. In addition to the unique convertible-drive-train-configuration, this 911 has a specific colour scheme with a special paint finish in Oakgreen metallic and an interior in light brown. Moreover, it comes with full equipment that leaves nothing to be desired: sports exhaust system, Burmester hi-fi system, fully electric seats, roof and leather in special colour and much more. Specially configured vehicles for the Porsche family have always created a direct personal link between the brand’s history and its founders and designers. Even among these rare collector’s vehicles, however, technological customisations are likely to be extremely rare and therefore all the more appealing. This exceptional 911 combines several absolutely unique features: The GT3 RS engine in a “discreet” 991 cabriolet body, the combination with all-wheel drive and the first ownership by a member of the Porsche family. This unique specimen is therefore not only a racy driving machine but also a particularly exclusive collector’s item. It also offers the highest form of stylish understatement to own and drive a Porsche 911 GT3 RS with an open roof.
Model history:
In autumn 2011, the seventh generation of the Porsche 911 was presented as the internal 991 series. Initially, there were engines with 3.4 and 3.8 litres of displacement, which produced 350 hp or 400 hp (S model) and were equipped with manual or dual-clutch transmissions (PDK). Initially, only the coupé was available with rear-wheel drive. A convertible and AWD version followed later. As with the previous model series, a road-legal racing version “GT3” was again available from 2013. Its water-cooled 3.8-litre naturally aspirated engine initially produced 475 hp, always coupled with the PDK transmission. The 991 GT3 had a fixed rear wing and specially designed front and rear aprons as well as centrally positioned exhaust pipes. From 2015, the GT3 RS was available. This had a completely newly developed 4.0-litre naturally aspirated engine with an output of 500 hp, also exclusively in combination with a PDK transmission. In 2016, the 911R appeared – a special model limited to 991 units with the engine of the GT3 RS, but without the distinctive rear wing and exclusively with a manual gearbox. In principle, the 911R was already the forerunner of the GT3 Touring available from 2017. This Touring version had a retractable variable rear spoiler instead of the fixed rear wing, but the distinctive front and rear apron, the central exhaust system and special rims with central locking like the “normal GT3 RS”. This model was also only available with a manual 6-speed gearbox. A “GT3 RS” convertible model was never built in the official model range.
