Aston Martin DB12 vs Jeep Grand Cherokee

What's the difference?

Typically when a car company makes a bold claim in their press release it's hyperbole designed simply to grab attention. But in the case of the DB12, Aston Martin truly has built something different than before, elevating it beyond its previous ‘Grand Tourer’ status.

While ‘Super Tourer’ may be a bit dramatic in name, this is a very impressive car across the board. It’s fast, fun, luxurious, comfortable, opulent, stylish and liveable, so while it may require a heavy financial investment, you are duly rewarded.

Plus you also get to pretend to be James Bond…

A wise man* once said "Being first can sometimes feel like being wrong" and perhaps that's how it is with the 4xe, but at least Jeep Australia is giving the large SUV hybrid realm a good ol' try.

* Former CarsGuide Big Kohuna, Glen Knowles.

The company's first plug-in hybrid, the Grand Cherokee 4xe, is not perfect by anyone's standards, however, it is a definite move in the right direction.

It's a quiet and refined drive, it retains the brand's renowned 4WD capability, and even its hefty price-tag likely won't dissuade Jeep loyalists from giving it a go.

Personally, I felt like Aston Martin peaked with its ‘DB’ design nearly two decades ago with the DB9. It was a masterpiece of simplicity, elegance and heritage and the subsequent DB11 just looked more fussy and complicated for the sake of being different.

The DB12 manages to correct that mis-step from the designers, getting back to the classic silhouette of an Aston Martin, maintaining the trademark elements (specifically the unique grille shape) and the elegance of simplicity.

Aston Martins don’t need to be attention-grabbing like a Ferrari or Lamborghini. Instead, they attract attention with an understated but unmissable presence that just attracts eyeballs. You don’t need to know anything about cars to know that the DB12 is a very expensive, luxury sports coupe - it says all that the second you get a look at it.

The interior of DB12 looks and feels every bit as prestigious as the exterior does. High-quality materials have been used throughout and there is a level of fit and finish that elevates beyond most other cars on the market. It feels like a hand-made car, built with patience and detail, rather than something rushed down a production line.

The cabin design itself manages to feel both classical and modern, in the same way the exterior takes inspiration from Aston Martins of previous years but gives them a 21st century update.

As with any vehicle, some will like it, some won’t, and some simply won’t care all that much. 

The 4xe certainly has a distinctive Jeep look to it.

A few exterior design cues hint at its PHEV leanings: the plug-in point on the front left-hand panel and a ‘4xe’ designation on the rear door.

Inside Aston Martin’s designers have understood the typical customer isn’t a Gen Alpha who does everything on their smartphone, so there’s a neat array of proper buttons, switches and dials to take care of all the functions without taking your eyes off the road. If you are into technology you may be disappointed by the relatively small infotainment screen, but from a usability perspective it does the job well.

As you’d expect the level of fit and finish is impressive and the diamond quilting on the leather seats looks exceptional. The seats themselves are comfortable and supportive, with generous cushioning rather than the sportier, less comfortable seats found in purebred sports cars.

The DB12 is a 2+2, with a pair of seats in the rear, but to be frank you’d need to be desperate to use them. They are ‘emergency use only’ seats that will deeply compromise the front seat occupants just to squeeze anyone in the back.

The Jeep Grand Cherokee Summit Reserve 4xe PHEV retains the regular model’s level of functionality but adds a reasonably classy touch to everything.

All seats offer adequate comfort, support and room.

There are plenty of storage spaces, cupholders etc, and charging points - two USB-A and two USB-C plus a 12V socket in the front and two USB-A and two USB-C plus a 230V point in the back.

Controls are generally easy enough to locate and operate although some buttons are positioned in awkward places – including drive-mode buttons under the steering wheel – and it sometimes takes a few finger-stabs at the multimedia touchscreen to get to where you want to go in the operating system.

In terms of packability, the rear cargo area has a listed 1067 litres of space, and, with the second row folded and out of the way, that space opens up to 2004 litres.

The five-seat Jeep Grand Cherokee Summit Reserve 4xe PHEV has a MSRP of $129,950 (excluding on-road costs).

Standard features include a 10.1-inch multimedia system (with Apple CarPlay and Android Auto), a 10.25-inch digital instrument cluster, 19-speaker audio system, quilted Palermo leather-trimmed seats, air suspension and 21-inch alloy wheels.

It also has a heated steering wheel, 12-way power-adjustable seats and four-way power lumbar adjustment with memory for driver and front passenger, driver and front passenger seat massage function and heated and ventilated seats (driver, front passenger and rear outboard passengers).

A Mode 2 charging cable is also included.

An 'Advanced Technology Group' pack is available as a $5500 option and that includes a head-up display, a 10.25-inch screen for the front passenger, wireless phone charger, and night vision camera.

Exterior paint options include 'Bright White', 'Diamond Black', 'Silver Zynith', 'Velvet Red', 'Baltic Grey', 'Rocky Mountain', 'Midnight Sky' and 'Hydro Blue'.

Aston Martin was once famous for its V12 engines, but with the brand changing hands so many times over the years and the pressure to develop increasingly expensive powerful, yet fuel-efficient engines means the brand now outsources some of its powertrains. So while the brand is developing a new V12 engine, the DB12 is powered by the 4.0-litre twin-turbo V8 built by Mercedes-AMG.

While Aston Martin fans may bemoan the use of a German engine in this British car, the truth is it’s a much better engine than the previous V12 used in the DB11, Vantage and other models. It offers up 500kW/800Nm and delivers all that performance in a broad spread across the rev range (unlike the old V12).

It gives the DB12 a sportier, more urgent and responsive driving character than its predecessors and helps to explain the new ‘Super Tourer’ name. Aston Martin claims it can run 0-100km/h in just 3.6 seconds and has a top speed of 325km/h.

The Jeep Grand Cherokee Summit Reserve 4xe PHEV has a 2.0-litre four-cylinder turbo-charged petrol engine, two electric motors (one on each axle) and a 17.3kWh battery.

Combined engine and electric outputs for power and torque are 280kW and 637Nm, respectively. The 4xe has it over any of its stablemates equipped with the 3.6-litre Pentastar V6 petrol engine because that yields 210kW and 344Nm.

The 4xe has an eight-speed automatic torque-converter transmission and regenerative braking.

Drive modes include 'Hybrid' (with combined engine and electric motor providing “maximum instant torque and impressive acceleration”, according to Jeep), 'Electric' (“zero emissions”) and 'eSave' (aims to save battery power). 

There are a few options available when it comes time to charge the 4xe.

The 4xe vehicle has a Mode 2 charging cable so you can charge it at home in less than 10 hours, according to Jeep.

With a full charge, the 4xe has a claimed driving range, on electric charge alone, of 52km.

Jeep reckons a Mode 3 (wall box) single-phase electric vehicle charger will fully charge the 4xe in less than three hours.

If out and about and looking for a charge, a 4xe driver can use the onboard 'UConnect' system to locate an appropriate public charging station.

Aston Martin claims a combined fuel cycle return of 12.2 litres per 100km, which is not what you would call sipping the unleaded, but given this is a large, grand tourer (sorry, Aston Martin, Super Tourer) it’s actually a solid return. If you’re in the market for a car like this, anything sub 15L/100km should be considered acceptable; if you’re worrying about emissions or the cost of petrol you probably shouldn’t be buying a $455k sports car.

Unfortunately we didn’t have the DB12 long enough to get a real-world fuel economy figure, so we’ll just have to take Aston Martin’s word for it.

With its 78-litre tank the DB12 does have a theoretical driving range of approximately 630km.

As mentioned, the 4xe has a listed electric-only driving range of 52km.

On our official test day, we drove just under 50km on a full electric charge and then the rest of the trip was courtesy of the good ol’ petrol engine.

Jeep's official figure for the combined cycle is just 3.2L/100km, but that's predicated on keeping the hybrid battery charged at all times. On fuel-only we recorded 11.6L/100km.

The 4xe has a 72-litre fuel tank (you need 95RON premium to fill it), so going by that on-test fuel-consumption figure, you could reasonably expect to get a driving range of about 620km out of a full tank.

Add an approximate electric range of about 50km on a full charge to that figure and you have a total estimated driving range of 670km.

The defining characteristic of a ‘Grand Tourer’ is that while fast, they aren’t typically agile and as responsive as a sports car. In other words, a grand tourer is best suited to a long, cross-country trip on faster, flowing roads, rather than a winding mountain pass or twisty switchbacks.

So, in keeping with the ‘Super Tourer’ theme that the brand is selling, the DB12 is notably more responsive and therefore more engaging to drive across any condition. It still has the comfortable, laid-back nature of a ‘GT’ but when you want to have some fun it’s capable of hiding its size and feeling very sporty.

The handling is highlighted by how quickly the front end of the car reacts. Typically with this front-engined 'GT' cars you feel like you're sitting at the very back of the car, so it feels slow to respond to inputs and that can create a feeling of laziness. But not in the DB12. The front end feels sharp and responsive, making you feel like you are right at the centre of the action.

It's helped by the engine that feels lighter than the old V12s but more urgent with its power delivery, too. It adds to that feeling of a more sporty and focused driver's car, rather than a 'GT' for just soaking up the kays. It shouldn't be surprising though, AMG doesn't really build relaxed, laid-back engines, rather ones designed for maximum excitement - and that's what the DB12 delivers when you bury your right foot.

Remarkably, it also plays the role of ‘daily driver’ well too. Which is an unusual way to think of a car like this, but for those fortunate enough to have the means to afford it, the DB12 could ferry you from home to work and back again in luxury and comfort.

We’re all time-poor, right? So, why should I take up your time and rattle on about the 4xe for a thousand words when I can get the essence of it across to you, the reader, in a few sentences? Call me, Mr Thoughtful.

This is generally a big, quiet and refined, easy-steering large SUV, but it feels bulky at times and tends to be quite fussy on irregular surfaces, exhibiting a jittery ride on even brief sections of light corrugations on dirt tracks.

The 4xe’s PHEV set-up is smooth and highly responsive on-road and you can switch between the aforementioned drive modes to suit the circumstance.

Driving range on electric only is listed as 52km. I only recorded a total distance of just under 50km, and it’s a very quiet and smooth drive while relying on electric power.

It regenerates power rather quickly down big hills and via braking, but we’d exhausted all electric charge by the time we’d reached our 4WD test track.

As expected, this Grand Cherokee tackled every off-road challenge without any strife. 

The air suspension, set to full off-road height, is a bonus.

Our 4WD test track consists of difficult set-pieces, including one small steep rocky hill that I’ve seen heavily modified vehicles struggle to conquer and, to the Jeep’s credit, it climbed the incline, no sweat.

The 4xe’s efforts were only ever hampered by its 'all-season' Continental CrossContact tyres (275/45R21) which are much better suited to blacktop driving and the fact the 4xe costs upwards of $129,950 and I didn’t want to risk any damage to it.

The 4xe has a listed wading depth of 610mm but our test track was dry so I never had the chance to do any water crossings. 

The Grand Cherokee has a solid enough rep as a towing vehicle but, take note, the 4xe is rated to tow 2722kg.

The Jeep Grand Cherokee Summit Reserve 4xe PHEV has the maximum five-star ANCAP safety rating from assessment this year.

Safety gear includes AEB with pedestrian detection, blind-spot monitoring with rear cross-traffic alert, adaptive cruise control, lane-keep assist, driver monitoring, traffic sign recognition, intersection collision assist, and a surround-view parking camera.

The Summit Reserve spec brings with it 'ParkSense' parallel and perpendicular park assist and (low-level autonomous) 'Active Driving Assist'.

It has eight airbags including front, side, and knee (for driver and front passenger), sides (for second-row passengers) and full curtain airbags.

The standard Aston Martin warranty covers three years/unlimited kilometres, which is unusually short by current industry standards; a curious case of the top end of the market lagging behind the mainstream brands.

Servicing is handled by individual dealers, so there’s no set cost structure, but the intervals are every 12 months/16,000km. Instead you’ll need to discuss what sort of costs are involved with keeping your DB12 running smoothly when you speak to a salesperson.

The Jeep Grand Cherokee Summit Reserve 4xe PHEV has a five-year/100,000km warranty and a lifetime roadside assist service.

Servicing is set at 12-month/12,000km intervals and capped price servicing keeps what you pay for each appointment at $399 for the first five.