Comparison Aston Martin DB9 Coupe R 5.9 V12 (608 Hp) & Porsche 911 Cabriolet (991) Carrera GTS 3.8 (430 Hp)
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| Brand: | Aston Martin | Porsche |
| Model: | DB9 | 911 |
| Generation: | DB9 Coupe | 911 Cabriolet (991) |
| Engine / modification: | R 5.9 V12 (608 Hp) | Carrera GTS 3.8 (430 Hp) |
| Production start: | 2004 year | 2014 year |
| Production end: | 2016 year | |
| Coupe type: | Coupe | Cabriolet |
| Num. of Doors: | 2 | 2 |
| Num. of seats: | 2 | 2+2 |
| Fuel consumption / economy - urban: | 13.7 l/100 km | |
| Fuel consumption / economy - extra urban: | 7.6 l/100 km | |
| Fuel consumption / economy - combined: | 9.7 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Fuel tank volume: | 64 l | |
| Emission standard: | EURO VI | |
| CO2 emissions: | 228 g/km | |
| Power: | 608 hp | 430 hp |
| Max power in: | 7000 rpm. | 7500 rpm. |
| Maximum speed: | 322+ km/h | 304 km/h |
| Acceleration from 0 to 100 km/h: | 4.6 sec | |
| Torque: | 440 Nm/5750 rpm. | |
| Engine position: | Front, longitudinal | Rear, longitudinal |
| Engine displacement: | 5935 cm3 | 3800 cm3 |
| Fuel System: | Multi-point injection | Direct injection |
| Position of cylinders: | V engine | Boxer |
| Number of cylinders: | 12 | 6 |
| Number of valves per cylinder: | 4 | |
| Compression ratio: | 12.5 | |
| Piston Stroke: | 79.5 mm | 77.5 mm |
| Cylinder Bore: | 89 mm | 102 mm |
| Wheel Drive: | Rear wheel drive | Rear wheel drive |
| Number of Gears (manual transmission): | 6 | 7 |
| Length: | 4767 mm | 4509 mm |
| Width: | 1978 mm | 1852 mm |
| Height: | 1318 mm | 1292 mm |
| Wheelbase: | 2740 mm | 2450 mm |
| Front track: | 1568 mm | 1538 mm |
| Rear (Back) track: | 1562 mm | 1560 mm |
| Minimum volume of Luggage (trunk): | 285 l | |
| Front suspension: | Double wishbone | Independent type McPherson |
| Rear suspension: | Double wishbone | Multi-link independent |
| Max weight: | 1905 kg | |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Ventilated discs |
| Kerb Weight: | 1100 kg | 1495 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | |
| Tire size: | 245/35 ZR20; 305/30 ZR20 | |
| Wheel rims size: | 9 J x 20; 11.5 J x 20 |