The arrival of the Audi R8 RWS marked a pivotal shift for a brand synonymous with all-wheel-drive dominance. By ditching quattro for rear-wheel drive, Audi aimed to deliver a more visceral driving experience, directly challenging the Porsche 911 GT3—a benchmark in the sports car world. Both vehicles share naturally aspirated engines, dual-clutch transmissions, and prices hovering around £113,000, setting the stage for an intense rivalry focused on purity and driver connection rather than outright luxury.
Engineering Philosophies Compared
Audi’s R8 RWS retains the mid-engine layout with a 5.2-liter V10 producing 533 horsepower and 540 Nm of torque, channeling power solely to the rear wheels via a seven-speed dual-clutch automatic. This setup sheds weight compared to its AWD siblings, enhancing agility but demanding precise throttle control. Porsche counters with its rear-engine flat-six configuration: a 4.0-liter unit delivering 493 horsepower and 460 Nm, also paired with a seven-speed PDK gearbox. The GT3’s design emphasizes balance, with the engine positioned far back for superior traction and handling feedback.
These layouts define their characters. The R8’s mid-engine positioning offers a lower center of gravity and predictable rotation under power, ideal for flowing corners. Porsche’s rear-engine setup provides explosive launches and exceptional rear grip, though it requires finesse to manage weight distribution.
Performance Specifications at a Glance
| Specification | Audi R8 RWS | Porsche 911 GT3 |
|---|---|---|
| Price (approx.) | £112,520 | £113,927 |
| Engine | 5.2L V10 | 4.0L Flat-Six |
| Power | 533 bhp | 493 bhp |
| Torque | 540 Nm | 460 Nm |
| 0-60 mph | 3.8 sec | 3.7 sec |
| Top Speed | 198 mph | 197 mph |
| Weight | 1,601 kg | 1,590 kg |
| Fuel Economy (test) | 21.6 mpg | 19.3 mpg |
Data compiled from direct comparisons shows near parity in straight-line speed, with the GT3 edging ahead in launch due to its rear-engine traction.
Straight-Line Acceleration Breakdown
Both cars excel in low-gear sprints, delivering heart-stopping launches. The R8 RWS surges with its V10’s broader torque band, matching the GT3 from a standstill on dry pavement. Independent tests confirm 0-60 mph in 3.4 seconds for the R8 and 3.3 seconds for the Porsche in metric equivalents. However, the Audi’s longer gearing hampers in-gear pulls; it takes 7.6 seconds for 50-70 mph, while the GT3 accomplishes it in 5.6 seconds.
- 0-100 kph: R8 3.4s vs GT3 3.3s – Porsche’s launch control shines.
- 60-100 kph (4th gear): R8 3.5s vs GT3 3.7s – Audi pulls ahead mid-range.
- Braking 100-0 kph: R8 32m vs GT3 31m – Minimal difference, both exemplary.
In wet conditions, the GT3’s semi-slick Michelins and rear bias yield a 3.7-second 0-60, even on slippery tracks, underscoring its confidence-inspiring nature.
Track Performance and Lap Times
Where data meets drama, lap times reveal the GT3’s edge. Across multiple circuits, Porsche consistently outpaces the R8:
| Track | Audi R8 RWS | Porsche 911 GT3 | Advantage |
|---|---|---|---|
| Hockenheim Short | 1:10.80 | 1:07.90 | GT3 (2.9s) |
| Mendig AFB | 1:51.18 | 1:48.18 | GT3 (3s) |
| Anglesey Coastal | 1:18.20 | 1:13.40 | GT3 (4.8s) |
| Sachsenring | 1:36.20 | 1:31.30 | GT3 (4.9s) |
The GT3 scores 100/100 in track performance versus the R8’s 91, thanks to superior agility and grip. On circuits like Bedford Autodrome in the wet, the Porsche’s balance allows aggressive lines, while the R8 demands more correction.
Handling Dynamics and Driver Feedback
The R8 RWS transforms the R8 lineup with sharper steering and a more neutral chassis, making it the most engaging Audi yet. Its mid-engine poise shines in sweepers, rotating willingly with throttle modulation. Yet, it lacks the GT3’s telepathic chassis connection—steering feel is precise but filtered, and traction on exit can overwhelm the rears.
Porsche’s GT3 sets the standard: phenomenal grip from vast tires, agile direction changes, and instant slide detection. The rear-engine layout feels planted, rewarding smooth inputs with surgical precision. Even at the limit, it remains composed, never snapping unpredictably. Reviews praise its ‘deep chassis connection,’ enabling drivers to exploit limits with confidence.
Powertrain Symphony: Engines and Sound
Audi’s V10 howls to 8,500 rpm, a symphonic roar that’s more operatic than the GT3’s raspy flat-six. The R8’s engine feels alive across its range, with explosive mid-range punch. Porsche’s unit builds progressively, unleashing fury above 5,000 rpm—less torque overall but addictive high-revving character. Both dual-clutch boxes shift lightning-fast, though Porsche’s PDK feels more intuitive in track scenarios.
Everyday Usability and Practicality
Neither prioritizes comfort, but the R8 offers a slightly roomier cabin with better ingress. Fuel economy favors the Audi at 21.6 mpg versus 19.3, though both guzzle on track. Ride quality is firm; GT3’s adaptive dampers edge it for road compliance. Boot space is minimal—Porsche’s frunk suffices for weekends.
Price, Value, and Ownership
At launch prices, they’re neck-and-neck, but residuals favor Porsche. Maintenance costs are high for both, with Audi’s V10 potentially thirstier long-term. The RWS appeals as an ‘affordable’ R8 entry, blending supercar pace with usability.
Pros and Cons
Audi R8 RWS
- Pros: Thunderous V10 soundtrack, stunning design, strong straight-line speed, accessible dynamics.
- Cons: Less chassis purity, gearing limits in-gear pace, traction challenges on exit.
Porsche 911 GT3
- Pros: Benchmark handling, superior track prowess, intuitive feedback, wet-weather grip.
- Cons: Harsher ride, less low-end torque, polarizing styling.
Which One Wins?
The Porsche 911 GT3 emerges victorious in this purist’s duel, dominating tracks and offering unmatched engagement. The R8 RWS is a worthy challenger—fun, powerful, and historic as Audi’s first RWD production car—but can’t dethrone the king. Choose R8 for V10 drama; GT3 for total mastery.
Frequently Asked Questions
Is the Audi R8 RWS faster than the Porsche 911 GT3?
No, the GT3 holds advantages in lap times and in-gear acceleration, though 0-60 is nearly identical.
Which has the better engine sound?
The R8’s V10 is more theatrical; GT3’s flat-six more raw and rev-happy.
Can beginners handle these cars?
Both demand skill, but GT3’s balance makes it more forgiving at limits.
What’s the top speed difference?
Negligible: 198 mph R8 vs 197 mph GT3.
Are they track-focused only?
Viable daily drivers, but excel on circuits.
References
- Audi R8 RWS vs Porsche 911 GT3 — Auto Express. 2018-05-16. https://www.autoexpress.co.uk/audi/r8/103520/audi-r8-rws-vs-porsche-911-gt3
- Porsche 911 GT3 vs Audi R8 V10 RWS — FastestLaps.com. N/A. https://fastestlaps.com/comparisons/8fugiglfk2in
- Audi R8 RWS V10 vs Porsche 911 GT3 – 2018 review — Autocar (YouTube). 2018.

