Porsche 911 Targa 4 GTS vs Aston Martin DBX707
Compare the Porsche 911 Targa 4 GTS vs Aston Martin DBX707. The Porsche 911 Targa 4 GTS is £65,000 cheaper. The Aston Martin DBX707 is 0.0s quicker to 60mph. The Porsche 911 Targa 4 GTS is more fuel efficient. Full performance, cost & ownership breakdown.
The Porsche 911 Targa 4 GTS is priced from £145,000, powered by a 3.0L Twin-Turbo Flat-6, producing 473 hp, with 570 Nm of torque, reaching 0-60 mph in 3.3s, a top speed of 193 mph, sent to the road via all-wheel drive. The Aston Martin DBX707 is priced from £210,000, powered by a 4.0L Twin-Turbo V8, producing 707 hp, with 900 Nm of torque, reaching 0-60 mph in 3.3s, a top speed of 193 mph, sent to the road via all-wheel drive.
The Porsche 911 Targa 4 GTS offers a 132-litre boot, a usable front boot, runs on petrol, returns around 26 mpg, is covered by a 4yr / 50k mi warranty. The Aston Martin DBX707 offers a 632-litre boot, folding rear seats, runs on petrol, returns around 21 mpg, is covered by a 3yr / unlimited mi warranty.
On cost of ownership, the Porsche 911 Targa 4 GTS is £65,000 cheaper than its rival, the Porsche 911 Targa 4 GTS costs less in annual maintenance (£1,500 versus £1,700), the Porsche 911 Targa 4 GTS is the more fuel-efficient choice, a full tank costs around £85 for the Porsche 911 Targa 4 GTS and £100 for the Aston Martin DBX707.
Driving Character: Porsche 911 Targa 4 GTS vs Aston Martin DBX707
The Porsche 911 Targa 4 GTS is defined by the versatility of its twin-turbo 3.0L flat-six, which offers a broader, more tractable power delivery than the naturally aspirated engines in the GT stable. Its all-wheel-drive system provides immense confidence, keeping the car composed in challenging conditions. The chassis is well-balanced, though the Targa roof mechanism introduces a weight penalty that slightly softens its cornering agility compared to a coupe. Nevertheless, with PASM and the GTS-tuned sports suspension, it remains a highly capable machine that balances road-going comfort with the sharp dynamics expected of a Porsche sports car.
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.
Head-to-head, the division is clear: the Porsche 911 Targa 4 GTS takes our 0-100 driving character grading, 82 against 78. Characteristic of the Porsche 911 Targa 4 GTS: The GTS sweet spot in an open-top Targa body with reassuring AWD grip. For the Aston Martin DBX707: Startlingly quick and composed for a two-tonne-plus SUV. In outright terms it is 473 hp against 707 — a 234 hp gap — and the Aston Martin DBX707 reaches 60 mph 0.0s sooner.
Interior & Cabin: Porsche 911 Targa 4 GTS vs Aston Martin DBX707
The cabin of the Porsche 911 Targa 4 GTS is dominated by the iconic Targa bar, which provides a unique open-air experience while maintaining structural integrity. The interior is finished to a high standard, with premium materials and the intuitive, driver-centric layout that characterises the 992 generation. While the Targa bar creates a stylish aesthetic, it does restrict rear visibility somewhat. The technology, including the standard Bose audio, is well-integrated and provides a modern feel. It is a sophisticated, high-quality environment that balances luxury with the functional needs of a performance-oriented driver.
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.
Head-to-head, the division is clear: the Aston Martin DBX707 takes our 0-100 interior & cabin grading, 84 against 85. Characteristic of the Porsche 911 Targa 4 GTS: Comfortable, well-finished cabin with genuine everyday usability. For the Aston Martin DBX707: Lavish, driver-focused cabin unlike most performance SUV rivals.
Daily Usability: Porsche 911 Targa 4 GTS vs Aston Martin DBX707
Practicality is a major strength of the Porsche 911 Targa 4 GTS, as it offers the security of all-wheel drive and the joy of an open top. This combination makes it a genuinely usable car for all seasons, functioning perfectly as a daily driver. The rear seats offer occasional space for children or extra storage, and the front trunk is surprisingly capacious. While the roof mechanism does impact boot space when fully retracted, the overall design remains very user-friendly. It is a refined, comfortable cruiser that does not sacrifice its sporty character in the pursuit of daily usability.
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.
Head-to-head, the division is clear: the Aston Martin DBX707 takes our 0-100 daily usability grading, 80 against 82. Characteristic of the Porsche 911 Targa 4 GTS: Genuinely usable daily 911 with the added versatility of an open roof. For the Aston Martin DBX707: Genuinely practical family SUV with supercar-baiting pace. that means 132 litres of boot space against 632, plus a usable front boot in the Porsche 911 Targa 4 GTS, and everyday running costs that favour the Porsche 911 Targa 4 GTS at the pumps.
Ownership: Porsche 911 Targa 4 GTS vs Aston Martin DBX707
Ownership of the Porsche 911 Targa 4 GTS is bolstered by Porsche’s extensive and highly capable dealer network. Reliability is a strong point, with the well-proven twin-turbo engine and AWD system requiring standard, predictable maintenance. While the Targa roof mechanism adds a layer of technical complexity that could lead to higher long-term maintenance costs, the model's consistent popularity with enthusiasts ensures stable residual values. With a comprehensive four-year warranty, owners can enjoy the car with confidence, knowing they have a reliable, multi-talented vehicle that excels in almost every category of performance and daily usage.
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.
Head-to-head, the division is clear: the Porsche 911 Targa 4 GTS takes our 0-100 ownership grading, 80 against 62. Characteristic of the Porsche 911 Targa 4 GTS: Strong Porsche reliability reputation and broad dealer network. For the Aston Martin DBX707: Strong demand keeps residuals healthy. On the wallet the two diverge at £145,000 versus £210,000 — a £65,000 difference, with annual maintenance of £1,500 against £1,700, and warranty cover of 4yr / 50k mi versus 3yr / unlimited mi.