Comparison Mercedes-Benz A-class (W177, facelift 2022) AMG A 45 (421 Hp) MHEV 4MATIC+ AMG SPEEDSHIFT DCT & Porsche 911 Cabriolet (997) Carrera 3.6 (325 Hp) Tiptronic S
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| Brand: | Mercedes-Benz | Porsche |
| Model: | A-class | 911 |
| Generation: | A-class (W177, facelift 2022) | 911 Cabriolet (997) |
| Engine / modification: | AMG A 45 (421 Hp) MHEV 4MATIC+ AMG SPEEDSHIFT DCT | Carrera 3.6 (325 Hp) Tiptronic S |
| Production start: | 2022 year | 2006 year |
| Production end: | 2008 year | |
| Coupe type: | Hatchback | Cabriolet |
| Powertrain Architecture: | MHEV (Mild Hybrid Electric Vehicle, power-assist hybrid, battery-assisted hybrid vehicles, BAHV) | |
| Num. of Doors: | 5 | 2 |
| Num. of seats: | 5 | 4 |
| Fuel consumption / economy - urban: | 17.0 l/100 km | |
| Fuel consumption / economy - extra urban: | 8.1 l/100 km | |
| Fuel consumption / economy - combined: | 11.4 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.29 | |
| Fuel tank volume: | 64 l | |
| Combined fuel consumption (WLTP): | 8.8-9.2 l/100 km | |
| Emission standard: | Euro 4 | |
| CO2 emissions: | 275 g/km | |
| Power: | 421 hp | 325 hp |
| Max power in: | 6750 rpm. | 6800 rpm. |
| Maximum speed: | 270 , Electronically limited km/h | 280 km/h |
| Acceleration from 0 to 100 km/h: | 3.9 sec | 5.7 sec |
| CO2 emissions (WLTP): | 200-208 g/km | |
| Torque: | 500 Nm @ 5000-5250 rpm. | 370 Nm @ 4250 rpm. |
| Model Engine: | M 139 | M 96/05 |
| Engine position: | Front, transverse | Rear, longitudinal |
| Engine displacement: | 1991 cm3 | 3596 cm3 |
| Engine oil capacity: | 8.25 l | |
| Coolant: | 32 l | |
| Fuel System: | Direct injection / Multi-point indirect injection | Multi-point injection |
| Position of cylinders: | Inline | Boxer |
| Valvetrain: | DOHC, CAMTRONIC | DOHC |
| Number of cylinders: | 4 | 6 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 11.3 | |
| Piston Stroke: | 92 mm | 82.8 mm |
| Cylinder Bore: | 83 mm | 96 mm |
| Electric motor power: | 14 | |
| Wheel Drive: | All wheel drive (4x4) | Rear wheel drive |
| Number of Gears (automatic transmission): | 5 Tiptronic S | |
| Length: | 4427 mm | |
| Width: | 1808 mm | |
| Height: | 1310 mm | |
| Wheelbase: | 2350 mm | |
| Maximum amount of Luggage (trunk): | 135 l | |
| Front suspension: | Independent, Spring McPherson, with stabilizer | |
| Rear suspension: | Multi-link independent | |
| Max weight: | 1920 kg | |
| Front brakes: | Ventilated discs | |
| Rear brakes: | Ventilated discs | |
| Kerb Weight: | 1520 kg | |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | Hydraulic Steering |
| Minimum turning circle (turning diameter): | 10.9 m | |
| Tire size: | 235/40 ZR18; 265/40 ZR18 | |
| Wheel rims size: | 19 | 8J x 18; 10J x 18 |