Audi RS7 vs Porsche 911 GT3
Compare the Audi RS7 vs Porsche 911 GT3. The Audi RS7 is £38,000 cheaper. The Porsche 911 GT3 is 0.2s quicker to 60mph. The Audi RS7 is more fuel efficient. Full performance, cost & ownership breakdown.
The Audi RS7 is priced from £105,000, powered by a 4.0L Twin-Turbo V8, producing 591 hp, with 800 Nm of torque, reaching 0-62 mph in 3.6 s, a top speed of 155 mph (standard limiter), sent to the road via all-wheel drive. The Porsche 911 GT3 is priced from £143,000, powered by a 4.0L Flat-6, producing 502 hp, with 470 Nm of torque, reaching 0-62 mph in 3.4 s, a top speed of 198 mph, sent to the road via rear-wheel drive.
The Audi RS7 offers a 535-litre boot, folding rear seats, runs on petrol, returns around 24 mpg, is covered by a 3 years / 60,000 miles (original UK cover; first 2 years unlimited) warranty. The Porsche 911 GT3 offers a 132-litre boot, a usable front boot, runs on petrol, returns around 23 mpg, is covered by a 3 years / unlimited miles (original UK new-car cover) warranty.
On cost of ownership, the Audi RS7 is £38,000 cheaper than its rival, the Audi RS7 costs less in annual maintenance (£1,200 versus £1,500), the Audi RS7 is the more fuel-efficient choice, the Audi RS7 has 73 L fuel tank, the Porsche 911 GT3 has 64 L fuel tank.
Driving Character: Audi RS7 vs Porsche 911 GT3
The RS7 occupies a unique space, marrying the brutal acceleration of a 4.0L twin-turbo V8 with the visual drama of a low-slung, sweeping Sportback. With 591 hp and the advanced Quattro system, it delivers devastating straight-line performance that feels relentless and almost telepathic. All-wheel steering is standard, giving this imposing car an agility that defies its substantial weight in the corners. It is a machine designed for covering vast distances at high speed with effortless ease, providing a level of poise that turns even the most demanding road into a manageable ribbon of asphalt.
The Porsche 911 GT3 remains the benchmark for naturally aspirated sports cars. Its 4.0L flat-six is a masterpiece of linear power delivery, revving to a crescendo that defines the driving experience. The chassis balance is near perfect, thanks to its sophisticated double-wishbone front suspension, which provides telepathic steering feedback. On the road, it is a demanding partner that requires focus, yet it rewards the driver with an analogue feel that is largely absent from its turbocharged peers. Every gearshift, whether manual or PDK, is crisp and intentional, cementing its position as a true driver-focused machine for the real world.
Head-to-head, the division is clear: the Audi RS7 — 591hp V8 in Sportback body; fast estate performance at a premium; the Porsche 911 GT3 — Naturally aspirated 4.0L flat-six; linear, rev-hungry throttle response. Characteristic of the Audi RS7: Quattro AWD with Sport differential; planted and fast in all weathers. For the Porsche 911 GT3: Communicative steering with genuine road feel; analogue at the limit. In outright terms it is 591 hp against 502 — a 89 hp gap — and the Porsche 911 GT3 reaches 60 mph 0.2s sooner.
Interior & Cabin: Audi RS7 vs Porsche 911 GT3
The interior is a high-luxury environment, mirroring the technical sophistication of the RS6 but packaged within a more dramatic, coupe-like frame. The Virtual Cockpit Plus provides clear, customisable readouts, while the cabin's materials—ranging from carbon fibre to Valcona leather—exude a premium, tactile quality. Because of the raked roofline, the rear cabin feels more intimate than in the Avant version, sacrificing headroom for a more sporting aesthetic. It is undeniably a driver’s cabin, where every control feels weighted, precise, and purposefully placed to enhance the feeling of being in something truly exclusive.
The cabin of the Porsche 911 GT3 is a focused environment, blending high-end technology with a driver-centric design. Alcantara and carbon fibre trim are standard, providing a tactile, high-quality feel that mirrors the car’s track-ready intention. The instrumentation is clear and uncluttered, ensuring that vital information is at the driver's fingertips. While the rear seats are removed to save weight, the front interior remains comfortable enough for a spirited drive across continents. The ergonomics are peerless, placing every control in the perfect position for intuitive use during high-speed operation, reflecting the deep thought Porsche invests in its driver interface.
Head-to-head, the division is clear: the Audi RS7 — Fastback Sportback gives dramatic profile with genuine four-seat practicality; the Porsche 911 GT3 — Driver-focused ergonomics; clear, purposeful instrumentation. Characteristic of the Audi RS7: Latest Audi MMI infotainment and Virtual Cockpit; technology class-leading. For the Porsche 911 GT3: Alcantara and carbon trim; stripped-back but quality materials.
Daily Usability: Audi RS7 vs Porsche 911 GT3
While the RS7 is undoubtedly a performance vehicle, its Sportback design offers a practical twist. The 535L boot is more than sufficient for typical weekend trips, and the lift-back opening makes loading gear straightforward. Urban use requires awareness; its significant width and low stance mean care is needed in narrow parking structures, though the array of sensors and cameras makes it doable. In Comfort mode, the air suspension does a commendable job of masking road surface harshness, ensuring that urban traffic or motorway cruising is conducted with a sense of refined, whisper-quiet calm.
Despite its hardcore reputation, the Porsche 911 GT3 is surprisingly usable for an enthusiast. The dimensions are well-suited to narrow UK lanes, and the front lift system helps preserve the front bumper over speed humps. While the suspension is undeniably firm, it is well-damped, avoiding the harshness found in more extreme models. Luggage capacity is sufficient for a weekend of touring, with both the front and rear shelf area providing storage. It functions well for urban errands, though the engine’s performance is clearly happiest when given the space to stretch its legs on a challenging back road.
Head-to-head, the division is clear: the Audi RS7 — 535L boot with folding seats; more practical than its sporting profile suggests; the Porsche 911 GT3 — Manageable dimensions suit urban environments better than rivals. Characteristic of the Audi RS7: Mild hybrid system improves fuel economy on long journeys. For the Porsche 911 GT3: Front trunk and rear boot usable for weekend luggage. that means 535 litres of boot space against 132, plus a usable front boot in the Porsche 911 GT3, and everyday running costs that favour the Audi RS7 at the pumps.
Ownership: Audi RS7 vs Porsche 911 GT3
As a flagship performance model, the RS7 commands a premium in terms of running costs. Fuel consumption is consistent with a high-output V8, and the long-term maintenance requires a dedicated budget for tyres, brakes, and scheduled service checks. Audi’s dealer network ensures that this level of care is easily accessible, and the car's desirable styling keeps residual values firm amongst performance-oriented buyers. It is a car that demands a commitment to its upkeep, but in exchange, it offers an ownership experience defined by style, speed, and the confidence that comes with a top-tier automotive engineering product.
Ownership of the Porsche 911 GT3 is a relatively straightforward affair within the performance car market. The extensive Porsche dealer network provides excellent service coverage, making it easier to maintain than hypercar-level alternatives. Residual values remain exceptionally strong, with demand consistently outstripping supply. Annual maintenance costs are reflective of the performance specification, but parts availability is good. Insurance is manageable for a car of this capability, and the reliability of the naturally aspirated powertrain adds a layer of confidence to the ownership experience. It is a car that makes financial and emotional sense to the dedicated enthusiast.
Head-to-head, the division is clear: the Audi RS7 — Audi dealer network widest in this class; RS7 supported everywhere; the Porsche 911 GT3 — Porsche dealer network extensive; service expertise widely available. Characteristic of the Audi RS7: Strong residuals for RS7; demand from dual-purpose buyers keeps values firm. For the Porsche 911 GT3: Exceptional residuals; high enthusiast demand sustains value. On the wallet the two diverge at £105,000 versus £143,000 — a £38,000 difference, with annual maintenance of £1,200 against £1,500, and warranty cover of 3 years / 60,000 miles (original UK cover; first 2 years unlimited) versus 3 years / unlimited miles (original UK new-car cover).