From £64,8709
Porsche adds electric power to its third-generation Cayenne line-up

What is it?

Back in 2007, Porsche showed how it could incorporate hybrid technology into the first-generation Cayenne.

More than a decade later, the Cayenne E-Hybrid is being launched with a brief of stealing sales from Audi’s Q7 e-tron and Range Rover P400e.

Power comes from a 3.0-litre V6 petrol engine mated to an electric motor, giving a combined 456bhp and 516lb ft of torque. Other figures are equally impressive; you can travel up to 27 miles on electric power alone, hit a top speed of 84mph without ever engaging the petrol engine and cover the 0-60mph sprint in 4.7sec.

But the really impressive number is 88mpg; that’s what the official tests say you should see on the fuel economy readout.

What's it like?

The Cayenne defaults to its electric-only driving mode on start-up, so there’s no engine noise as you pull away. Sadly, this only heightens the road noise, of which there is a lot at any speed.

Anything other than a soft prod of the throttle will invite the petrol engine to join the party, but its extra shove is welcome when it comes to overtaking and the noise is sufficiently raucous at high revs.

You can choose from the usual Sport and Sport+ driving modes via a dial on the steering wheel, plus an electric-only mode and ‘hybrid auto’, which lets the car decide what’s best. There’s also a boost function that gives you the full power of the electric motor and engine for 20 seconds.

What’s particularly impressive is that, despite its extra weight, this Cayenne feels agile through the corners, helped by quick, well weighted-steering. Our test car came on air suspension, which dealt with small imperfections in the road well. On either of the two harder settings, you’ll feel more vibrations coming into the cabin.

The interior is much the same as the regular Porsche Cayenne. That is to say, it’s very nice, indeed, with swathes of leather and Alcantara covering most surfaces. The bespoke bits for this E-Hybrid model are mainly confined to the driver’s information screens, which can show your remaining electric range and the battery’s state of charge.

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On a varied route and through sampling the various driving modes on offer, our test car returned a mere 34mpg. But with CO2 emissions of between 72 and 78g/km depending on which tyre size you choose, this should still be the cheapest Cayenne in the current range to tax and fuel - and with the right wheel choice, it will even qualify for the under 75g/km emissions exemption from the London congestion charge. 

Should I buy one?

With prices starting just north of £67,000, this Cayenne is slightly more expensive than Audi’s rival Q7 e-tron but significantly cheaper than the Range Rover P400e.

It’s a compelling car, though, and the idea of potentially being able to travel into tariff-controlled cities such as London and out again without having to pay a congestion charge (depending on which tyre size you choose), yet still having all the benefits of a performance SUV, will appeal to many.

Porsche Cayenne E-Hybrid specification

Where Montpellier, France Price £67,128; On sale June; Engine V6, 2995cc, petrol, plus electric motor; Power 456bhp; Torque 536lb ft; Gearbox 8-spd automatic; Kerb weight not stated; Top speed 159mph; 0-62mph 4.7sec; Fuel economy 88mpg; CO2 72-78g/km; Rivals Audi Q7 e-Tron, Range Rover P400e

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Join the debate

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Phil R 16 May 2018

Electric or Plug in

There's a huge incentive to use the plugin hybrid and not petrol motor which is the car runs for pennies on electricity but filling it up costs way more. Just because owners of these cars have money does not mean that they don't like wasting it. I know many of them who will drive a mile out of their way to get cheaper petrol or diesel, cut off unused stamps etc. 

Autocar, surely there's a video in how far the various plug-in hybrids go in real-world driving in the city, country roads, motorways, and if you're at a bruntingthorpe runway, what's the maximum you can eek out of them compared to the manufacturer stated range. 

TStag 15 May 2018

Somehow the Range Rover seems

Somehow the Range Rover seems better value. It does a whole 29 miles on electric only yet is heavier and a full blown off-roader. JLR 2 VW group 0

Tom Chet 15 May 2018

34 mpg = 193g of CO2/km

34 mpg equates to CO2 emissions of 193g/km.