Peugeot 308 vs Porsche Cayenne

What's the difference?

The 308 GT Sport plug-in hybrid is a beautifully designed small hatch that is comfortable, enjoyable and easy to drive. The electric motor gives this hatch good acceleration and the equally impressive handling makes for a fun car to drive too. There's good storage, a decent boot and room for even tall people like me in those back seats.

There are two clear drawbacks, however: the price is steep compared to the petrol version; and you'll need to plug the vehicle into a power supply each night if you drive the car daily and want to achieve the 2.4L/100km fuel economy we did in this test.

Last, but probably the most important thing you'll read is that Peugeot will bring fully electric cars to Australia from the second half of 2023, from SUVs to (hopefully) the battery electric version of this very 308 hatch.

If it was my money, I'd hold on - you're going to have your next car for quite a long time so it's worth waiting for the fully electric versions.

Note: CarsGuide attended this event as a guest of the manufacturer, with meals provided.

Of all the super SUVs I've piloted, the Porsche Cayenne Turbo GT is the best all-rounder in terms of performance, comfort, cabin technology and style.

As a family car it's roomy, practical and easy to use and drive daily.

As a performance car the Turbo GT is stupidly quick, with the agility of a sports car. Sure, a 911 would leave it behind on a twisty race track, but this SUV is close to having that sportscar experience and keeping your family, as well.

There hasn't been a Peugeot in the last five years that wasn't stunning. There's the high quality feel in their build, and premium yet unique look - like a new Volvo but with more flair. And the 308 hatch and this hybrid version has all of that.

From the sinister looking LED tail-lights to the wide mesh grille, you really get the feeling that Peugeot is hitting its design stride.

This 308 GT Sport plug-in hybrid looks identical to the petrol version with its low, wide stance, and big dark alloy wheels that fill up its arches.

The cabin is sporty, lavish and minimalist with quilted leather upholstery seats, the digital driver display and media screen, and avant garde small angular steering wheel.

This might be a personal thing but to me nearly all Porsches look better from the back than the front.

It's the wide stance and powerful haunches, the hunkered down suction-capped-to-the-road look that does it for me and the Cayenne Turbo GT, despite being an SUV, passes this important Porsche checklist item.

The GT aero kit only serves to make this SUV look more of a beast, and the gold-bronze looking satin Neodyne wheels are a Porsche theme that I've not always been a fan of, but I get the historic connection.

If only the Turbo GT could look a little less like other Cayennes from the front. This is the king of the SUV range and despite the apron and bumper already being exclusive to this model, there should be more.

Vents in the wheel arches, carbon bonnet with nostrils GT3-style perhaps? Or is that going too far? If you do want something more lairy then there's always the Urus.

The Cayenne Turbo GT's cabin is stunning in its plushness and modern surprises such as the passenger display, the hoodless instrument digital cluster, the lashings of Race-Tex upholstery everywhere. It's perfectly Porsche. High-performance meets high-end.

It's also highly practical. Let's talk about that.

Peugeot's 308 is a small hatch, think Toyota Corolla, only beautiful and more spacious.

So, the 308 can carry five people with just enough head and legroom for a semi-giant like me (I'm 191cm) to sit behind his driving position.

There's good cabin storage with large door pockets, a long and deep storage box under the centre armrest up front along with two cupholders up there, too.

The boot has a cargo capacity of 361 litres, which isn't bad for this class.

To power devices there's a wireless phone charger under the dash, and USB ports for front and rear passengers.

A quirky Peugeot design feature is the low-placed angular steering wheel. I found had to squeeze my knees past to sit in the driver's seat. I'm not sure what size human was used as the test case for this but it wasn't somebody with stilts like mine, I can tell you that.

The Porsche Cayenne Turbo GT only makes one compromise on practicality and that's the removal of the middle seat in the back, which, with just two kids isn't used all the time but on average we might need it once a week for school mates and cousins.

Instead of a middle seat there is a shallow tray, which will fit a phone or in our case leaves and rocks found at the park.

So, yes, the Turbo GT is a four-seater only, but this is a spacious, large SUV with good head and legroom, wide-opening doors for easy entry and exit, and air suspension which can raise and lower the height for easy access.

Storage is excellent with enormous door pockets in the front and back and there are four cupholders.

There's a wireless phone charger in the front and two USB-C ports as well, plus two USB-C sockets in the back.

Four-zone climate control means the kids in the back can set their own temperatures. They also have heated seats.

I was disappointed to see there aren't sunshades for the rear windows - pretty vital in Australia where it feels like we're only about 50 metres away from the sun.

The Turbo GT's 576-litre boot just managed to fit our pram and a week's shopping, which is our minimum standard for living. Any more space is a bonus.

The Turbo GT is the king of Cayennes, so it shouldn't surprise anybody that it's also the most expensive with its list price of $364,700.

Lamborghini's Urus lists for $409,744  and is the Cayenne Turbo GT's not-so-subtle Italian cousin, sharing the same platform and engine.

Both are in my mind the best performance SUVs on the planet. It just depends how conspicuous you want to be.

Then there's Bentley's V8 Bentayga which isn't blessed with the Porsche's good looks but would still be all over the Cayenne if the two happened to meet at a race track.

So, why is the GT Turbo the king of the Cayennes? What makes it better? For all the reasons you'd think - it's the fastest, most powerful, most luxurious and most equipped Cayenne in the range.

We'll get into mind-bending engine and performance specs soon, but first let me take you through the standard features on a car that's anything but standard.

Coming standard and exclusively to the Turbo GT are 22-inch 'GT Design' wheels in satin 'Neodyne' with full-colour Porsche centre caps, an active rear spoiler, Turbo GT front apron, dual titanium exhaust, rear apron with diffuser, 'SportDesign' side skirts, wheel arch extensions, a lightweight carbon roof and tinted LED HD-matrix headlights.

Inside, and also exclusive to this grade, is the 'GT Interior Package' with 'Race-Tex' upholstery throughout with 'Deep Sea Blue' stitching on the front seats and centre console and the armrests and dashboard.

There's also the 'Carbon Interior Package' which includes dashboard and door trim elements.

Race-Tex trim is applied to the 'GT Sports' steering wheel, roof lining and gearshift, too.

The adaptive active air suspension, which can lower the car by 15mm, is standard and only available on the Turbo GT, too.

The soft-close doors are standard (a cost option on lower grades), as are the stainless steel pedal covers.

The rest of the features are also found on lower grades and include the 12.65-inch digital instrument cluster, head-up display, proximity unlocking, 12.3-inch multimedia touchscreen with sat nav, wireless Apple CarPlay and Android Auto, digital radio, a 10-speaker Bose sound system, heated front seats, rear privacy glass and an auto tailgate.

Four-zone climate control is standard on the GT Turbo, too, and so are heated rear seats.

Our car had several options fitted such as the front passenger display ($2860) and the Deep Sea Blue Accent Package.

The passenger display is a crowd pleaser, but as a family car my kids felt like they were missing screens in the back seats, too. Well, in my day...

The 308 GT Sport plug-in hybrid has a 1.6-litre turbo-petrol engine making 132kW and 250Nm combined with an electric motor at the front wheels making 81kW and 320Nm.

The combined output of the engine and motor working together is 165kW and 360Nm, and sending that grunt to the front wheels only is an eight-speed automatic transmission.

Acceleration is good. We're talking 0-100km/h in 7.4 seconds which is more than two seconds quicker than the petrol-only variant.

As a middle-aged parent with two children, a Porsche that I don't have to crawl into and out of like a cubby house is a great thing.

What's even better is that this ‘easy access' Porsche is every bit as brutally powerful and fast as the quintessentially ‘pure' Porsche, the 911. Actually, it's more powerful and faster.

The Turbo GT's twin-turbo 4.0-litre V8 petrol engine makes 485kW and 850Nm with drive going through an eight-speed transmission to all four wheels.

In comparison, a Porsche 911 GT3 RS, arguably the most brutal and anti-social 911, has 386kW/485Nm.

I haven't made a mistake. Those are the real numbers. And it's only when you step on the accelerator in the Cayenne Turbo GT, and it feels like somebody's sat down on your chest, that you realise what a big deal this is.

That is such a colossal amount of oomph that this 2.2-tonne family SUV can accelerate from 0-100km/h in 3.3 seconds.

The 911 GT3 RS can do it in 3.2 and it has a roll cage and a fixed rear wing the size of a bedroom door.

And yes, we're now coming into a digital age where Teslas and other electric SUVs are quick, too, but can they go around corners like a Porsche Cayenne Turbo GT?

Do they have the same rumble and roar as a twin-turbo V8 that's terrifying and enticing at the same time.

The correct answer is, absolutely not.

This is what it's all about right? Well, Peugeot says that after a combination of open and urban roads the 308 GT Sport plug-in hybrid will use 1.3L/100km.

At the launch I did a 34km test loop through Sydney's Northern Beaches with a good mix of morning traffic and hilly terrain. At the end of my journey the trip computer reported an average fuel consumption of 2.4L/100km.

I drove the entire loop in Hybrid mode, but there is a Sport mode, a Battery Save mode and EV mode.

If you were to drive in EV mode Peugeot says the electric driving range with a full battery is 60km.

At the start of my drive the battery was about three-quarters charged with the gauges displaying 38km of range.

A mileage of 2.4L/100km is still excellent fuel economy and from experience I can tell you a petrol-only variant would be up around the 8.0 or 9.0L/100km mark for the same trip.

There is a catch, and that is you'll need to plug in your hybrid 308 daily to charge the battery if you plan to achieve the fuel economy I did.

Charging will be slow, however, because Peugeot has fitted this hybrid with a small 3.7kW on-board charger. So, even using a fast charger you'll be looking at more than four hours to fully charge the 12.4kWh lithium-ion battery.

This charging time and small electric driving range in return could be a deal breaker for some and it's the reason why I've given the 308 GT Sport plug-in hybrid a lower mark. If you aren't always charging this car your fuel usage will rocket. New buyers unaware of this could end up using more petrol than ever.

A fully electric vehicle may be a better solution for city dwellers.

Seriously? This is a 2.0-tonne twin-turbo petrol V8 with a 90-litre fuel tank. Even the Porsche specs sheet doesn't understand the question because in the column for fuel efficiency there are three letters - tbc.

My own testing saw me record 22.5 L/100km at the fuel pump, which means I enjoyed driving the car very much.

A little digging around reveals Porsche globally claims the Turbo GT will use 12.6L/100km, over a combination of open and urban roads.

You might not have as much fun as I did but easing back a little might get you closer to the 700km of range this more frugal consumption figure appears to offer.

While efficient it isn't, I'm not going to mark the Turbo GT too much here because compared to its petrol rivals the fuel consumption is what I'd expect from such a high-output heavy SUV.

Once you've become accustomed to the strange, low steering wheel with its angular design the 308 GT Sport plug-in hybrid is superb to drive. The suspension is composed and comfortable, the handling is excellent, the steering is light and with the combination of both the electric motor and petrol engine, acceleration is good.

For those of you who haven't driven a plug-in hybrid before I think you'll like the quiet electric power at low speeds and the feeling of ‘instant' acceleration the electric motor adds, but compared to driving a regular petrol car the experience is much the same, just less noisy and smoother.

Never have I met a car this powerful and superbly athletic that is as pleasurable to drive alone on great, fast roads as it is to pilot at 50km/h in the suburbs with a family on board.

It exceeds my understanding of engineering that something this large can move so quickly. That in an instant can turn and tip into a corner with such precision and effortlessness.

Yet it can switch seamlessly and happily to coping with speed bumps and potholes, delivering a ride so comfortable it'll send babies off to sleep. And it did.

The only issue, and this is such a tiny thing, is the dash-mounted gearshift, which means having to reach up and select Drive or Reverse or Park, which, when executing a three-point turn, is necessarily frustrating.

Still, I'm giving the Turbo GT a 10 out of 10 for driving under all conditions, and we didn't even go off-road, which of course you can do, as long as it's not too wild.

The Porsche Cayenne Turbo GT hasn't been locally crash tested and so doesn't have an ANCAP rating.

That's quite normal for super high-end cars. But, when this third-generation model first arrived in 2017 it was tested by ANCAP's European equivalent, Euro NCAP, and was awarded the maximum five stars.

There's AEB which operates at city, urban and highway speeds, and lane keeping assistance, and lane change assistance which is a form of blind-spot warning, and adaptive cruise control. You can option rear cross-traffic alert, as well.

A space saver spare wheel is under the boot floor.

The 308 GT Sport plug-in hybrid is covered by Peugeot's five-year/unlimited-kilometre warranty.

Peugeot will cover the hybrid battery with an eight-year/160,000km warranty.

Servicing is recommended at 15,000km or 12 month intervals and it can be expensive. Peugeot says the first service will be $425, then second is $771, the next is $425, then at 60,000km the costs will be $900, then $439 for the following.

The Cayenne Turbo GT is covered by Porsche's three-year, unlimited kilometre warranty, which is lagging behind in terms of duration even compared to other luxury brands such as Mercedes-Benz, which offers five years.

Servicing is recommended annually or every 15,000km, although there isn't a capped price maintenance plan with final costs determined at the dealer level (in line with variable labour rates by state or territory).