Aston Martin DBX707 vs Porsche 911 Turbo S
Compare the Aston Martin DBX707 vs Porsche 911 Turbo S. The Porsche 911 Turbo S is £35,000 cheaper. The Porsche 911 Turbo S is 0.6s quicker to 60mph. The Aston Martin DBX707 is more fuel efficient. Full performance, cost & ownership breakdown.
The Aston Martin DBX707 is priced from £210,000, powered by a 4.0L Twin-Turbo V8, producing 697 hp, with 900 Nm of torque, reaching 0-62 mph in 3.3 s, a top speed of 193 mph, sent to the road via all-wheel drive. The Porsche 911 Turbo S is priced from £175,000, powered by a 3.8L Twin-Turbo Flat-6, producing 641 hp, with 800 Nm of torque, reaching 0-62 mph in 2.7 s, a top speed of 205 mph, sent to the road via all-wheel drive.
The Aston Martin DBX707 offers a 638-litre boot, folding rear seats, runs on petrol, returns around 21 mpg, is covered by a 3 years / unlimited miles (original UK new-car cover) warranty. The Porsche 911 Turbo S offers a 128-litre boot, a usable front boot, runs on petrol, returns around 20 mpg, is covered by a 3 years / unlimited miles (original UK new-car cover) warranty.
On cost of ownership, the Porsche 911 Turbo S is £35,000 cheaper than its rival, the Aston Martin DBX707 costs less in annual maintenance (£1,700 versus £1,800), the Aston Martin DBX707 is the more fuel-efficient choice, the Aston Martin DBX707 has 87 L fuel tank, the Porsche 911 Turbo S has 67 L fuel tank.
Driving Character: Aston Martin DBX707 vs Porsche 911 Turbo S
The DBX707 redefines the expectations of a luxury SUV, injecting 707hp of twin-turbo V8 fury into a high-riding chassis that refuses to behave like a typical utility vehicle. With its intelligent all-wheel-drive system and electronic rear differential, it manages to put its immense power down with surprising effectiveness. While it possesses remarkable grip, the physics of its 5071 lbs weight inevitably surface during aggressive cornering. The nine-speed wet-clutch gearbox is snappy, providing gear changes that feel purposeful and sharp, allowing the driver to exploit the engine's 900Nm of torque to its absolute limit with confidence and speed.
The Porsche 911 Turbo S utilises a sophisticated AWD system with active torque vectoring that provides staggering, all-weather performance. It feels deceptively rapid, with a chassis control system that masks its immense power through cornering, yet it ultimately insulates the driver more than the GT-spec siblings, prioritizing crushing point-to-point speed over nuanced steering feel.
Head-to-head, the division is clear: the Aston Martin DBX707 — 4.0L twin-turbocharged V8 powertrain; produces 707 hp for immense all-wheel drive acceleration; the Porsche 911 Turbo S — AWD with torque vectoring; staggering, all-weather all-conditions performance. Characteristic of the Aston Martin DBX707: Dynamic chassis control; actively manages heavy 5071 lbs mass through corners with composure. For the Porsche 911 Turbo S: Deceptively rapid; chassis control masks immense power with composure. In outright terms it is 697 hp against 641 — a 56 hp gap — and the Porsche 911 Turbo S reaches 60 mph 0.6s sooner.
Interior & Cabin: Aston Martin DBX707 vs Porsche 911 Turbo S
The interior of the DBX707 is a masterclass in performance luxury, featuring bespoke sport seats and Alcantara detailing that separates it from the standard model. It offers genuine, spacious accommodation for four adults, ensuring that performance does not come at the expense of passenger comfort. However, when compared to the ultra-modern interfaces of the Cayenne or the Urus, the cabin tech feels slightly behind the curve. While the build quality is superb and the materials are quintessentially British, the infotainment system lacks the cutting-edge fluidity of its most direct rivals at this price point.
The cabin is remarkably refined for such a potent machine, making it a genuinely usable daily GT car. It features the signature Sport Chrono dial and luxury seating, with all technology packages seamlessly integrated. While the material quality is high, it lacks the bespoke flair or artisanal material choices found in certain Italian rivals at this price point.
Head-to-head, the division is clear: the Aston Martin DBX707 — Luxurious quilted leather upholstery; provides traditional cabin comfort within a high-performance setting; the Porsche 911 Turbo S — More refined than GT3; genuinely usable as a daily GT car. Characteristic of the Aston Martin DBX707: Extensive technology interface; integrates digital displays seamlessly into a driver-centric luxury cockpit. For the Porsche 911 Turbo S: Sport Chrono, luxury seats, and technology package well integrated.
Daily Usability: Aston Martin DBX707 vs Porsche 911 Turbo S
Practicality is the DBX707’s greatest asset, boasting a 632-litre boot that makes it a legitimate family vehicle capable of swallowing luggage with ease. Its air suspension system with adaptive dampers allows the car to switch seamlessly between a composed, comfortable cruiser and a stiffened, responsive performance machine. While fuel economy is inevitably poor at 21mpg, the trade-off is a level of versatility rarely seen in such a powerful vehicle. It is a car that thrives on variety, handling the school run and high-speed motorways with equal parts ease and effortless, explosive capability.
As the most practical 911 variant, the Turbo S offers genuine all-season confidence thanks to its AWD architecture. Its clever combination of a front boot and rear storage allows for meaningful luggage space, though the expansive body width can create significant challenges in tight urban environments. Furthermore, its sheer performance demands regular attention to tyre wear.
Head-to-head, the division is clear: the Aston Martin DBX707 — Versatile 632L boot space; folding seats increase cargo capacity for varied family requirements; the Porsche 911 Turbo S — Most practical 911 variant; AWD provides genuine all-season confidence. Characteristic of the Aston Martin DBX707: Generous 195mm ground clearance; allows easy access to diverse terrains and urban obstacles. For the Porsche 911 Turbo S: Front and rear boots provide meaningful storage for a supercar. that means 638 litres of boot space against 128, plus a usable front boot in the Porsche 911 Turbo S, and everyday running costs that favour the Aston Martin DBX707 at the pumps.
Ownership: Aston Martin DBX707 vs Porsche 911 Turbo S
Maintaining a DBX707 is a manageable affair compared to its more exclusive siblings, thanks to the expansion of the Aston Martin dealer network and improved service accessibility. Demand for the vehicle on the used market is robust, driven by the growing appetite for high-performance SUVs, though early depreciation remains a factor for first owners. Tyre costs are significant given the car’s weight and performance, and owners must prepare for the regular attention required by such a high-output platform. Overall, it serves as a reliable, albeit premium-cost, flagship for those needing utility with a supercar-killing powertrain.
Maintaining a stellar reputation for reliability, this model remains a benchmark for high-performance usability. It commands premium residuals in the used market, consistently holding its value well. However, prospective owners must account for high annual maintenance costs, with the complex PDK transmission and AWD system adding significant weight to long-term service intervals compared to simpler sports cars.
Head-to-head, the division is clear: the Aston Martin DBX707 — Comprehensive brand support network; facilitates routine service and warranty care across the globe; the Porsche 911 Turbo S — Industry-leading reliability reputation for a car of this performance level. Characteristic of the Aston Martin DBX707: High production output; ensures stable supply of replacement parts for long-term reliability. For the Porsche 911 Turbo S: Strong residuals; 911 Turbo S commands premium on used market. On the wallet the two diverge at £210,000 versus £175,000 — a £35,000 difference, with annual maintenance of £1,700 against £1,800.