Comparison Opel Astra G Coupe 2.0 16V Turbo (192 Hp) & Porsche 911 Cabriolet (997, facelift 2008) Carrera 3.6 (345 Hp) & Porsche 911 Cabriolet (991) Carrera 4 GTS 3.8 (430 Hp) PDK
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| Brand: | Opel | Porsche | Porsche |
| Model: | Astra | 911 | 911 |
| Generation: | Astra G Coupe | 911 Cabriolet (997, facelift 2008) | 911 Cabriolet (991) |
| Engine / modification: | 2.0 16V Turbo (192 Hp) | Carrera 3.6 (345 Hp) | Carrera 4 GTS 3.8 (430 Hp) PDK |
| Production start: | 2001 year | 2008 year | 2014 year |
| Production end: | 2002 year | 2012 year | |
| Coupe type: | Coupe | Cabriolet | Cabriolet |
| Num. of Doors: | 2 | 2 | 2 |
| Num. of seats: | 2+2 | 4 | 2 |
| Fuel consumption / economy - urban: | 12.5 l/100 km | 15.6 l/100 km | 12.5 l/100 km |
| Fuel consumption / economy - extra urban: | 6.8 l/100 km | 7.5 l/100 km | 7.1 l/100 km |
| Fuel consumption / economy - combined: | 8.9 l/100 km | 10.4 l/100 km | 9.2 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.30 | 0.30 | |
| Fuel tank volume: | 52 l | 64 l | 68 l |
| Emission standard: | Euro 4 | Euro 5 | EURO VI |
| CO2 emissions: | 214 g/km | 245 g/km | 214 g/km |
| Power: | 192 hp | 345 hp | 430 hp |
| Max power in: | 5400 rpm. | 6500 rpm. | 7500 rpm. |
| Maximum speed: | 231 km/h | 289 km/h | 301 km/h |
| Acceleration from 0 to 100 km/h: | 7.8 sec | 5.1 sec | 4.2 sec |
| Torque: | 250 Nm @ 1950-5300 rpm. | 390 Nm @ 4400 rpm. | 440 Nm/5750 rpm. |
| Model Engine: | Z20LET | MA1.01 | |
| Engine position: | Front, transverse | Rear, longitudinal | Rear, longitudinal |
| Engine displacement: | 1998 cm3 | 3614 cm3 | 3800 cm3 |
| Engine oil capacity: | 4.25 l | 7.5 l | |
| Coolant: | 7.4 l | 29-32 l | |
| Fuel System: | Multi-point injection | Direct injection | Direct injection |
| Aspiration / Turbine: | Turbocharger | ||
| Position of cylinders: | Inline | Boxer | Boxer |
| Valvetrain: | DOHC | ||
| Number of cylinders: | 4 | 6 | |
| Number of valves per cylinder: | 4 | 4 | |
| Compression ratio: | 8.8 | 12.5 | 12.5 |
| Piston Stroke: | 86 mm | 77.5 mm | |
| Cylinder Bore: | 86 mm | 102 mm | |
| Wheel Drive: | Front wheel drive | Rear wheel drive | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | 7 PDK | ||
| Number of Gears (manual transmission): | 5 | 6 | |
| Length: | 4267 mm | 4435 mm | 4509 mm |
| Width: | 1709 mm | 1808 mm | 1852 mm |
| Width including mirrors: | 1967 mm | ||
| Height: | 1390 mm | 1310 mm | 1294 mm |
| Wheelbase: | 2606 mm | 2350 mm | 2450 mm |
| Front track: | 1467 mm | 1538 mm | |
| Rear (Back) track: | 1456 mm | 1560 mm | |
| Minimum volume of Luggage (trunk): | 460 l | 285 l | |
| Maximum amount of Luggage (trunk): | 135 l | ||
| Front suspension: | Independent, Spring McPherson, with stabilizer | McPherson | Independent type McPherson |
| Rear suspension: | Semi-independent, spring | Multi-link independent | Multi-link independent |
| Max weight: | 1660 kg | 1880 kg | 1955 kg |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Ventilated discs | Ventilated discs |
| Kerb Weight: | 1290 kg | 1500 kg | 1560 kg |
| ABS: | yes | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Hydraulic Steering | Hydraulic Steering | |
| Max. roof load: | 100 kg | ||
| Minimum turning circle (turning diameter): | 11.5 m | 10.9 m | |
| Permitted towbar download: | 75 kg | ||
| Tire size: | 215/45 R17 | 235/40 ZR18; 265/40 ZR18 | 245/35 ZR20; 305/30 ZR20 |
| Wheel rims size: | 7.5J x 17 | 8J x 18; 10.5J x 18 | 9 J x 20; 11.5 J x 20 |