1998 Opel Astra vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 7 year(s). Which means there will be less support and parts availability for 1998 Opel Astra. In addition, the cost of maintenance, including insurance, on 1998 Opel Astra would be higher. At 3,596 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (316 HP @ 6800 RPM) has 231 more horse power than 1998 Opel Astra. (85 HP @ 4400 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1998 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche 911 weights approximately 270 kg more than 1998 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1998 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 Porsche 911 (370 Nm @ 4250 RPM) has 185 more torque (in Nm) than 1998 Opel Astra. (185 Nm @ 1800 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1998 Opel Astra.
Compare all specifications:
| 1998 Opel Astra | 2005 Porsche 911 | |
| Make | Opel | Porsche |
| Model | Astra | 911 |
| Year Released | 1998 | 2005 |
| Engine Position | Front | Rear |
| Engine Size | 1998 cc | 3596 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 85 HP | 316 HP |
| Engine RPM | 4400 RPM | 6800 RPM |
| Torque | 185 Nm | 370 Nm |
| Torque RPM | 1800 RPM | 4250 RPM |
| Engine Bore Size | 84 mm | 96.1 mm |
| Engine Stroke Size | 90 mm | 82.8 mm |
| Engine Compression Ratio | 6.0:1 | 11.3:1 |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1280 kg | 1550 kg |
| Vehicle Length | 4300 mm | 4440 mm |
| Vehicle Width | 1720 mm | 1840 mm |
| Vehicle Height | 1470 mm | 1300 mm |
| Wheelbase Size | 2620 mm | 2360 mm |
