Why is the Porsche 911 engine in the rear?
A story of timeless design
Rear view of Porsche 911 Targa (type 992.2) with glass building in background
For more than 60 years, Porsche has done things its own way with the 911. The rear-engine layout was an engineering solution that has endured and evolved into an icon
For over 75 years, Porsche has always done things wrong.Our critics said the ignition belongs on the right, we put it on the left. They said a real Porsche shouldn’t have four doors. We made four-door models that are faster than most two-door ones. They said sportscars could never be electric. We developed the Taycan. And they said the engine should always be in the front. In the 911, we put it in the rear.That particular story goes all the way back to the first-ever 911. In 1963, Porsche laid the foundation for what would become a timeless icon with the unveiling of a brand-new sportscar that, unlike most other vehicles, had its engine fitted in the rear. It’s an engineering legacy that has stood the test of time ever since. For more than 60 years, this ingredient has been the starting point for all further developments of the 911.
Side view of a classic Porsche 911
Since the very first 911 was launched in 1963, Porsche has continually evolved and refined the 911, but one aspect has remained a constant – its classic rear-engine layout
The reason was – and still remains – physics. When the engine is fitted in the rear, traction is improved because the weight of the engine rests on the driven axle, especially in winter or low-traction conditions. Braking performance is also improved, as the weight of a rear-mounted engine allows more braking force to be transferred to the rear wheels.911 – design icon That first 911, with its then air-cooled boxer engine in the rear, also meant there was no front radiator grille. It’s a combination that helped shape the layout of the car and since become a central strand of its DNA, helping turn the 911 into a global design icon.Eight generations of the 911 later, the boxer engine in the rear continues to be the most important facet of the 911 story.“The layout is so characteristic,” said Michael Mauer, who has been chief designer of Porsche for over 20 years. “The shape of the car is closely related to this layout. If I had to fundamentally change the layout, it wouldn’t be a 911 any more.”
Engine bay in rear of 1986 Porsche 911 Turbo (type 930)
The rear-engine layout of the Porsche 911 spanned the air-cooled era – like this 1986 930 Turbo – but remained with the introduction of water-cooled engines in the type 996 in 1997 right through to the modern day
With the engine placed over its rear wheels, the design of the 911 possesses a unique iconography that can be traced all the way back to the first model. “The design of the 911 is characterised by a handful of design features,” Michael explained. “It starts at the front – a special topography where the wings are higher than the bonnet. And that’s because the engine is in the rear.”From what started out as an engineering solution, the rear engine layout of the 911 has gone on to define sportscar driving dynamics. As the perfectly-proportioned sportscar, wrong has become so right. And it’s why the 911 is now a timeless icon.
Consumption and emission information 911 Targa 4 GTS (WLTP): Fuel consumption combined: 10.9 – 10.5 l/100 km; CO₂ emissions combined: 248 – 239 g/km; CO₂ class: . 911 Targa 4S (WLTP): Fuel consumption combined: 10.9 – 10.8 l/100 km; CO₂ emissions combined: 249 – 244 g/km; CO₂ class: . 911 Turbo S (WLTP): Fuel consumption combined: 11.7 – 11.5 l/100 km; CO₂ emissions combined: 266 – 262 g/km; CO₂ class: .
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