BMW 4 Series Coupé vs Porsche 911
Better figure, where one is clearly better
| BMW4 Series Coupé | Porsche911 | |
|---|---|---|
| Overview | ||
| Released | October 2020 | 2019 |
| Performance | ||
| Powertrain | Petrol, Mild hybrid | Petrol, Hybrid |
| Power | 181–386 bhp | 389–631 bhp (better) |
| 0–62 mph | 4.4–7.5 s | 2.5–4.5 s (better) |
| Top speed | 149–155 mph | 183–200 mph (better) |
| Engine or motors | 420i: 1,998 cc four-cylinder turbo petrol, 135 kW (184 hp); M440i xDrive: 2,998 cc six-cylinder turbo petrol with 48 V mild hybrid, 288 kW (392 hp); bhp converted from BMW's kW figures | 3.0-litre twin-turbo flat-six, 394 PS (Carrera, Carrera T) or 480 PS (Carrera S, 4S); 3.6-litre flat-six T-Hybrid, 485 PS system output (GTS); 4.0-litre naturally aspirated flat-six, 510 PS (GT3); 3.6-litre twin-turbo flat-six, 640 PS (Turbo S); bhp converted from PS. 0–62 mph with Sport Chrono where Porsche lists it (Carrera 4.1 s and Carrera S 3.5 s without) |
| Torque | 300 Nm (420i), 540 Nm (M440i xDrive) | – |
| Gearbox | 8-speed automatic | 8-speed PDK dual-clutch; 6-speed manual on the Carrera T; GT3 with 7-speed PDK or 6-speed manual |
| Drive | Rear-wheel drive (420i) or all-wheel drive (M440i xDrive) | Rear-wheel drive; all-wheel drive on Carrera 4S and Turbo S |
| Range and charging | ||
| Economy (WLTP) | 39.8–44.8 mpg (better) | 20.7–28.1 mpg |
| Efficiency | WLTP combined: 42.8–44.8 mpg (420i, depending on trim), 36.7–39.8 mpg (M440i xDrive) | WLTP combined (model range): 26.9–28.1 mpg (Carrera), 26.0–27.0 (Carrera T), 26.4–27.7 (Carrera S), 25.8–27.1 (Carrera 4S), 25.9–27.1 (GTS), 20.5–20.7 (GT3), 24.1–24.6 mpg (Turbo S) |
| CO2 emissions | 144–149 g/km (420i), 162–174 g/km (M440i xDrive), WLTP combined | – |
| Practicality | ||
| Body | Coupé | Coupé |
| Seats | 4 | 4 |
| Boot | 440 litres (better) | 135 litres |
| Length | 4,768 mm | 4,542 mm |
| Width | 1,852 mm | 1,852 mm |
| Weight | – | From 1,565 kg |
| Boot | 440 litres | 135-litre front boot (128 litres Turbo S); 261 litres behind the front seats with the rear seats folded |
| Towing | Up to 1,600 kg braked (420i), 1,800 kg (M440i xDrive) | – |
| Size | 4,768 mm long (4,770 mm M440i), 1,852 mm wide (2,081 mm with mirrors), 1,383 mm high (1,393 mm M440i); 2,851 mm wheelbase; EC unladen weight including a 75 kg driver is 1,600 kg (420i) or 1,845 kg (current M440i xDrive) | 4,542 mm long (4,553 mm GTS, 4,551 mm Turbo S, 4,570 mm GT3), 1,852 mm wide (1,900 mm Turbo S); EC unladen weight 1,565 kg (Carrera T) to 1,800 kg (Turbo S). Cabriolet and Targa versions are also sold |
