Porsche 911 Cabriolet reimagined by Singer, 2022. The latest restomod from the California-based Porsche specialists is their first convertible model and is based on a Type 964 Porsche 911 Cabriolet. The restoration included:
Lightweight carbon fibre bodywork in Cadiz Red
3.8 litre twin turbocharged flat-six with air-to-water intercooling
6-speed manual transmission
Rear-wheel drive and touring-focused suspension
Carbon-ceramic braking system
Electrically adjustable sports seats in Black with Tartan seat centres
Wood accents in Black Forest - Red
Automatic fabric hood
Porsche Cayenne Cabriolet (Concept Car).
The Cayenne was Porsche’s first SUV and has been extremely successful over the 20 years it has been on sale. The success of the Cayenne brought forth the smaller Macan, which has also been selling very well.While the Cayenne has remained in its 5-door SUV form all this while, there was a period in the early years when other bodystyles were considered – a coupe, a version stretched by 20 cm with an additional row of seats, and even a convertible. And surprisingly, what might have appeared the least conventional option – a Cayenne-based convertible approximately 4.8-metres long – was not immediately discarded. In fact, it was even built.
Today, there is still a single example of the open-top Cayenne kept in storage at the Porsche Museum. It is not a roadgoing prototype, however, but what is known as a Package Function Model – or PFM for short. The designers had the roof removed, but dispensed with the body-stiffening measures necessary for a convertible. Incapable of providing a safe and stable drive, the vehicle is transported to its destination when required. Test drives were never planned, as the convertible PFM was only built to assess four criteria.
The criteria were: Is the seating comfortable throughout the vehicle when the roof tapers in a more coupé-like way towards the rear and when the windscreen and A-pillars are shortened? How practical is the Cayenne as a 2-door model with doors which are 20 cm longer? Is it possible to accommodate an elegant, high-quality soft top that can also be folded quickly? And how should the rear end be designed?
There was still disagreement on the final issue in 2002, and two different rear sections were designed for the Package Function Model. The left-hand tail light was set low on the rear of the car, while the right-hand one was noticeably higher.
Had the car reached production, a single rear design would, of course, have been settled on in the end, and the technical issues would undoubtedly have been resolved. A now-familiar soft-top mechanism was envisaged: the luggage compartment lid of the Cayenne-PFM was attached at the front and rear, allowing it to be opened in both directions. The roof would travel over the fixed roll-over bar and be ‘swallowed’ in the rear by the luggage compartment lid, which opened in the opposite direction, folding in a z-pattern.
It has worked in a very similar way to this on the 911 Targa since the 991-generation model. The mechanism never got past the computer simulation stage for the Cayenne convertible, however, and was never fully constructed. Today, the fabric top is stowed in the luggage compartment of the museum piece and must be fitted manually if required.While the coupe idea of 2002 was later taken up again and implemented in 2019 in a production model, Porsche did not pursue the convertible idea further. Forecasts regarding profitability were not particularly promising and doubts remained as to whether the car would look as appealing as a Porsche should.
Volkswagen catalog (1991)
1937 Mercedes-Benz 540K Cabriolet
BMW ２００２ Cabriolet
BMW Isetta 300 “Cabriolet”
Of 8500 Isetta's imported into the U.S., 366 reported in current registry and 19 are Cabriolets.
With the Second World War having ended just a few years prior in 1945. Italy and much of the rest of Europe was in the grip of crippling economic austerity, and materials like steel, rubber, glass, and gasoline were hard to come by.This meant that the ideal car would made using as little steel, rubber, and glass as feasible, and that it would consume as little gasoline as possible. These shortages led to the rise of the bubble car, also known as the micro car.The design of the Iso Isetta used a simple steel chassis with a stamped steel body, a 236cc 9.5 hp two-stroke engine, a 4-speed transmission, and it offered seating for two with a small amount of groceries or cargo. For those who needed a car to get to work in urban environments like towns and cities the Isetta made a lot of sense.The top speed was understandably mild-mannered, just 47 mph or 75 km/h and that was perhaps a little ambitious. It took the Iso Isetta 30 seconds to reach 31 mph (50 km/h), but on the plus side the car offered fuel economy of 42 mpg‑US or 5.6 L/100 kms.The concept proved popular in Italy and it attracted attention from around the world. Before long the little Isetta was being produced en masse in factories in France, Spain, Argentina, Brazil, and in Germany where it was produced by BMW.
The Germans truly made the Italian Isetta their own. When BMW bought the tooling and rights for the car in 1955 they largely reengineered it and as a result very few parts are interchangeable between the Italian and German Isettas.BMW offered two main versions of the Isetta, the 250 and the 300. As is common practice with BMW the model number designations tell you the engine size, in this case in centiliters.The BMW Isetta 300 was faster and more powerful than its Italian forebear, offering 13 bhp and a top speed of 53 mph (85 km/h). The engine was also a more advanced four-stroke design that offered better fuel economy of up to 78 mpg‑US or 3 L/100 kms.One of the rarer sub-types of the BMW Isetta is the “cabriolet” version though it wasn’t a true convertible, perhaps more of a targa. The fabric sunroof could also be opened of course, this was also a safety feature in case the front opening door was jammed.
In the cabriolet models the rear window was replaced with a fold down fabric cover, allowing good airflow through the cabin and helping to solve the heat problems that drivers could encounter on hot sunny days due to the open greenhouse design of the cabin.