New Aston Martin DBX: 542bhp SUV charged with reviving firm

For now, the DBX’s engine is the AMG-sourced 4.0-litre V8 but a high compression ratio plus upgrades to the intercoolers and turbochargers lift power to 542bhp at 6500rpm and peak torque to 516lb ft, delivered between 2200rpm and 5000rpm, with 0-60mph in 4.3sec and a top speed of 181mph.

There are new efficiency refinements and a cylinder cut-off system for part-load running. The upshot is a combined WLTP fuel economy figure of 19.7mpg and a CO2 output of 269g/km.

New powertrains are coming for the DBX, and although Aston won’t give many details, it seems likely they will include a plug-in hybrid (doubtless using know-how from technology partner Daimler). Meanwhile, the company has also been gathering experience of electric vehicles – at St Athan – with its limited-edition RapidE saloon.

With an overall length of just over 5.04m, the DBX fits almost exactly into a gap between Bentley’s Bentley Bentayga (5.14m) and Porsche’s Porsche Cayenne (4.92m). It is low and sporty in SUV terms – 74mm lower than the Bentley, 20mm lower than the Porsche – yet its 3.06m wheelbase is longer than both, allowing packaging that makes it unusually spacious for both people and luggage.

Palmer said the DBX’s specification has been guided by “external counsel”, including from a female advisory board set up soon after his arrival at Aston Martin five years ago. Palmer especially values female customers and has been successful at attracting them to the company’s other vehicles, especially in Asia and the US.

As you might expect of a company that brought in Lotus’s top chassis man – Matt Becker – to develop its cars’ dynamics, Aston has equipped the DBX with all of the suspension hardware a serious SUV needs to perform its wide spectrum of duties well. It has triple-chamber air suspension to vary spring rates, adaptive damping from Bilstein and a 48V anti-roll system that incorporates what Aston claims is an extremely quick-acting electric motor into its anti-roll bars to counteract body roll according to instructions from sensors all over the car.

There’s a smart all-wheel-drive system that features electronically controlled centre and rear differentials to distribute torque away from slipping wheels. In normal use, the car is 100% rear driven – for high-speed handling reasons – but when necessary, just under 50% of torque is directed to the front wheels.

“The lateral grip numbers we’ve seen in testing on Tarmac have been incredible,” said Becker. “We believe we’ve pushed the boundaries of what is possible for an SUV.”

The DBX’s all-independent suspension can raise the car 45mm or lower it 50mm from normal ride height and there are six adaptive driving modes (four on road, two off road). The steering is all electric and high geared, requiring 2.6 turns from lock to lock.

The car rides on 22in Pirelli-shod wheels available in two different styles and the brakes are steel discs, 410mm diameter with six-piston discs in front and 390mm diameter at the rear.

Inside, the DBX is extremely plush and almost infinitely configurable. All switches and controls have been designed specifically for this new model. Prominent features include a large pair of TFT screens, one central and one ahead of the driver, and a ‘bridged’ centre console that brings both elegance and space efficiency to the cabin.

The seats are derived from Aston Martin DB11 designs, to enhance sportiness, and among a plethora of imaginative options are a pet package (which carries a portable dog washer) and a snow package (which has boot warmers for keen skiers).