By the logic of engineering, the Porsche 911 is a mistake. Its engine hangs behind the rear axle, where its weight makes the car want to swing its tail in a corner. For decades the engine was cooled by air, long after almost every other carmaker had moved to water. And its shape, a sloping roof, round headlamps and a long, low tail, has been refined rather than replaced for more than sixty years.
Every generation of engineers has been told to replace the 911. Every generation has ended up improving it instead. The result is one of the most successful sports cars ever built, and one of the few designs in any industry that is instantly recognisable in silhouette.
A difficult shape
The 911 was the second production car of a small company. Porsche's first, the 356, had grown out of the Volkswagen Beetle designed by Ferdinand Porsche, and it shared the Beetle's rear-mounted, air-cooled engine. By the late 1950s the 356 was ageing, and the company needed a successor that was faster, more comfortable and more practical, with room for golf clubs and two small rear seats.
The design was led by Ferdinand Alexander Porsche, the founder's grandson, known as Butzi. His brief was difficult: keep the rear-engined layout that defined the brand, but make a larger, more modern car. His answer was a fastback of remarkable simplicity, with a long bonnet sloping down between upright wings and a roof that flowed in one curve to the tail. There was almost no decoration. The shape was the decoration.
The car was shown at the Frankfurt motor show in September 1963 with a new six-cylinder engine of two litres, mounted behind the rear wheels and cooled by a large fan. It was not the most powerful car of its era, but it was light, compact and unusually precise to drive.
A name in dispute
The car was originally called the 901. Before it went on sale, Peugeot objected: the French maker had registered the right to use three-digit model names with a zero in the middle in France, and it had been naming its cars that way for decades. Rather than fight, Porsche changed the middle number. The 901 became the 911, a name that sounds so natural today that it is hard to imagine anything else.
It is a small story, but it says something about the car. The 911 has always been shaped by constraints, and it has often turned them into strengths.
Learning to drive it
The early 911 had a reputation. With its weight at the back, it could be tricky at the limit: lift off the throttle mid-corner and the tail might come round. Owners learned to brake in a straight line, turn in gently and power out of corners, using the weight over the rear wheels for traction. Driven this way, the car was wonderful, and its rear engine gave it superb grip under acceleration and on loose surfaces.
Porsche spent decades taming this behaviour with wider tyres, better suspension and eventually electronic systems, but it never removed the character entirely. Even today, a 911 feels different from a mid-engined or front-engined car: light at the front, planted at the back, with steering that seems to talk to your hands.
Air and water
For its first thirty-five years, the 911's engine was cooled by air, blown across finned cylinders by a fan. Air cooling was simple and light, and it gave the car its distinctive sound, a dry, mechanical howl quite unlike any water-cooled engine. It also became a symbol. When Porsche fans speak of the air-cooled cars, they mean the generations up to and including the 993, built until 1998, and those cars are now among the most collected in the world.
Air cooling had limits, however. Ever-stricter emissions rules and the need for more power with less noise made it impossible to keep. The 996 of the late 1990s was the first 911 with a water-cooled engine. It also had new headlamps that many fans disliked, and for some years it was the least loved 911. History has been kinder since: it was a necessary step, and it kept the car alive.
Since then, the 911 has passed through several generations, the 997, the 991 and the current 992, each a little larger, faster and more refined, each still unmistakably a 911.
Turbo, four-wheel drive and the track
The 911 has always had many versions. The Turbo of the mid-1970s brought turbocharging to a road-going sports car and gave the 911 a reputation for brutal speed, along with a wide body and a large rear spoiler that became an emblem of the era. Four-wheel drive arrived at the end of the 1980s, making the car easier and safer to drive fast in all conditions. Targas and cabriolets offered open-air versions.
At the other extreme are the lighter, more focused cars, from the Carrera RS of the 1970s to modern GT models, built for drivers who want to go to the track. Racing has been part of the 911 story from the beginning, and versions of the car have won almost every kind of race, from rallies to the endurance classics.
That breadth is part of the 911's success. It can be a quiet daily car, a weekend toy or a track weapon, and it is recognisably the same car in all its forms.
Why it endures
Why has the 911 survived when so many sports cars have come and gone? Partly through stubbornness: Porsche has resisted every temptation to abandon the basic layout. Partly through constant improvement: each generation has fixed the weaknesses of the last without losing its character. And partly because the car has always been usable. Unlike many exotic sports cars, a 911 can be driven every day, in traffic, in heat and in rain, and it will start every morning.
There is also the matter of identity. Drivers who buy a 911 are buying into a continuous story that stretches back to 1963. A new 911 and an early one parked side by side are clearly related, in the way that a son resembles his grandfather. In a world of constant reinvention, that continuity is rare and valuable.
The 911 in the Gulf
The 911 has a strong following across the Gulf, where drivers appreciate a car that copes with summer heat and long highway journeys as comfortably as a winding road. The region's open roads, mountain passes such as Jebel Jais and Jebel Hafeet, and growing number of tracks give owners plenty of places to enjoy one, and air-cooled classics have found enthusiastic collectors here too.
For anyone thinking of buying one, the advice is the same everywhere: drive several generations before choosing, because each has its own personality, and buy the best-maintained example you can afford. A well-cared-for 911 is one of the most rewarding cars to own, and one of the few that tends to hold its value.
Six decades on
The 911 will one day face its greatest test, as cars move towards electric power. Porsche has already introduced hybrid technology into the range, and it has been careful to promise that the 911 will remain the 911. Whatever form its power takes, the shape, the driving position and the feeling of a car built around its driver seem likely to remain.
More than sixty years after it broke the rules, the 911 has become the rule. Other sports cars are judged by how close they come to it.