2005 Opel Astra vs. 2007 Porsche 911
To start off, 2007 Porsche 911 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Opel Astra. In addition, the cost of maintenance, including insurance, on 2005 Opel Astra would be higher. At 3,824 cc (6 cylinders), 2007 Porsche 911 is equipped with a bigger engine. In terms of performance, 2007 Porsche 911 (350 HP @ 6600 RPM) has 227 more horse power than 2005 Opel Astra. (123 HP @ 5600 RPM) In normal driving conditions, 2007 Porsche 911 should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Porsche 911 weights approximately 260 kg more than 2005 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2007 Porsche 911 will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2007 Porsche 911 (400 Nm @ 4600 RPM) has 229 more torque (in Nm) than 2005 Opel Astra. (171 Nm @ 3800 RPM). This means 2007 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra.
Compare all specifications:
| 2005 Opel Astra | 2007 Porsche 911 | |
| Make | Opel | Porsche |
| Model | Astra | 911 |
| Year Released | 2005 | 2007 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 1796 cc | 3824 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 123 HP | 350 HP |
| Engine RPM | 5600 RPM | 6600 RPM |
| Torque | 171 Nm | 400 Nm |
| Torque RPM | 3800 RPM | 4600 RPM |
| Engine Bore Size | 80.5 mm | 99 mm |
| Engine Stroke Size | 88.2 mm | 82.8 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 200 km/hour | 288 km/hour |
| Acceleration 0-100mph | 10 seconds | 4.9 seconds |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1275 kg | 1535 kg |
| Vehicle Length | 4290 mm | 4440 mm |
| Vehicle Width | 1720 mm | 1860 mm |
| Vehicle Height | 1470 mm | 1310 mm |
| Wheelbase Size | 2710 mm | 2360 mm |
| Fuel Consumption Overall | 8 L/100km | 12 L/100km |
| Fuel Tank Capacity | 52 L | 67 L |
