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Porsche 911 and Cabriolet sizes and dimensions guide

It’s difficult to find another performance car with the same breadth of abilities the Porsche 911 has. Testers praise the performance icon’s handling, straight line speed, and general usability. The question is… could you fit one on your driveway?

How does the 911 measure up to the competition? Our handy guide covers all of the major dimensions for both Coupe and Cabriolet models.

Porsche 911 and Cabriolet exterior dimensions

Whether it’s compared to the Ferrari 458, Nissan GT-R or BMW M6, the Porsche 911 is smaller than almost all of them – particularly in terms of width. This helps it not just feel easier to drive around town, but easier to place on the road or track when driving quickly.

Dimensions vary from model to model, with the most potent Turbo, GT3 and GT3 RS versions featuring swollen wheel arches to house a wider rear axle.

External dimensions
Length 4,499-4,545mm
Width 1,808-1,880mm
Height 1,294mm
Wheelbase 2,450mm

Porsche 911 and Cabriolet interior dimensions

The two occupants sitting in the front will find the 911 a lovely place to be. The cabin is stylish and well made, and the driving position feels low and snug.

The back seats, however, are very cramped – they’re only really suitable for small children and, even then, the seat backs are almost vertical and there’s effectively no legroom, so they’re not the most comfy. This isn’t an issue in the GT3 and GT3 RS, where the rear seats are sacrificed to make way for a roll cage.

Porsche 911 and Cabriolet boot space

With the engine mounted at the back and a low, sleek bonnet, it’s quite clear the 911 is never going to be the ideal choice for a trip to the DIY store. Its rear boot might be small but, thanks to a second, similarly sized boot under the bonnet, two people can fit a weekend’s luggage in with ease. The token rear seats can also be used for additional storage.

Boot space
Rear boot 125-145 litres
Front boot 125 litres

Porsche 911 and Cabriolet turning circle and fuel tank capacity

Thanks to its fairly compact dimensions, the Porsche 911 is a surprisingly easy car to thread through busy streets. Add in the fact that it can perform a U-turn 0.3 metres more tightly than a Volkswagen Golf, and it’s one of the most stress-free supercars to drive on a daily basis.

All but the most extreme GT3 models average around 30mpg so, driven carefully, it might be possible to stretch the 911’s tank of fuel as far as 439 miles.

Turning circle and fuel tank
Turning circle 10.6 metres
Fuel tank 64-68 litres

Porsche 911 and Cabriolet weight

Despite the wider body, larger engine, and full motorsport-approved roll cage in the back, the lightest model in the range is the ballistic GT3 RS. Its roof is made from magnesium, the bonnet, front wings and rear spoiler are all carbon fibre, and the huge centre-lock wheels are feather-light. Even the rear window is made from plastic to shed a few more grams.

The standard 911 variants aren’t exactly hefty themselves, but add the four-wheel drive and chassis bracing for the Turbo S Cabriolet and the pounds begin to pile on. For those keen to shave every last kg, it’s worth choosing the manual gearbox – the dual clutch PDK weighs 20kg more.

Lightest Heaviest
1,420kg (GT3 RS) 1,675kg (Turbo S Cabriolet)

Find out more

Full details, including images, stats, and the views of the UK’s motoring press, can be found in our aggregated reviews of both the Porsche 911 and Porsche 911 Cabriolet.

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