Head to head
Mercedes-AMG G63VSPorsche 911 Turbo S
1–2
The Porsche 911 Turbo S wins on paper
Compared: Mercedes-AMG G63 W463A 2018–present and Porsche 911 Turbo S 992 2020–, from verified fact sheets.
| Mercedes-AMG G63 | Porsche 911 Turbo S | |
|---|---|---|
| Engine | 4.0-litre twin-turbo V8 (hot-V) | 3.7-litre twin-turbo flat-six |
| Displacement | 3,982 cc | 3,745 cc |
| Aspiration | Twin-turbocharged | twin-turbocharged (variable turbine geometry) |
| Power | 577 hp430 kW | 641 hp478 kW |
| Torque | 850 Nm627 lb-ft | 800 Nm590 lb-ft |
| 0-100 km/h | 4.5 s0-60 mph ≈ 4.3 s | 2.7 s0-60 mph ≈ 2.6 s |
| Kerb weight | — | 1,640 kg3,616 lb |
| Power-to-weight | — | 391 hp/t |
| Drivetrain | AWD (4MATIC, 40:60 rear-biased split, three locking differentials) | AWD |
| Gearbox | AMG Speedshift TCT 9G 9-speed automatic | 8-speed PDK dual-clutch |
The Porsche 911 Turbo S takes 2 of the five figures that decide a straight fight (power, torque, 0-100 km/h, weight and power-to-weight); its rival takes 1. Gaps under 2% (under 0.1 s to 100 km/h) count for nobody. 0-60 mph times are estimated from 0-100 km/h.
Mercedes-AMG G63 or Porsche 911 Turbo S: which should you pick?
Pick the Mercedes-AMG G63 if you want
- more torque
Pick the Porsche 911 Turbo S if you want
- the quicker sprint to 100 km/h
- more power
How the Mercedes-AMG G63 and Porsche 911 Turbo S sound
Mercedes-AMG G63
- Cross-plane V8 burble with crackles on overrun in Sport modes.
- Side-exit exhausts ahead of the rear wheels make the sound loudest from the side of the car.
Porsche 911 Turbo S
- Flat-six note heavily muted by the turbochargers; intake whoosh and turbo noise dominate.
- Optional sports exhaust adds volume but it stays far quieter than naturally aspirated 911s.
Known weak points
Mercedes-AMG G63
- Very high weight leads to fast wear of tyres and brakes.
- High fuel consumption.
Porsche 911 Turbo S
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