1991 Opel Astra vs. 2009 Porsche 911
To start off, 2009 Porsche 911 is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Opel Astra. In addition, the cost of maintenance, including insurance, on 1991 Opel Astra would be higher. At 3,599 cc (6 cylinders), 2009 Porsche 911 is equipped with a bigger engine. In terms of performance, 2009 Porsche 911 (409 HP @ 7600 RPM) has 309 more horse power than 1991 Opel Astra. (100 HP @ 5600 RPM) In normal driving conditions, 2009 Porsche 911 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2009 Porsche 911 weights approximately 330 kg more than 1991 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Porsche 911 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2009 Porsche 911. However, in wet, icy, snow, or gravel driving conditions, 1991 Opel Astra, being front wheel drive (FWD), will offer much better control with better grip. 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, 2009 Porsche 911 (405 Nm @ 5500 RPM) has 270 more torque (in Nm) than 1991 Opel Astra. (135 Nm @ 3400 RPM). This means 2009 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 1991 Opel Astra | 2009 Porsche 911 | |
| Make | Opel | Porsche |
| Model | Astra | 911 |
| Year Released | 1991 | 2009 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 1597 cc | 3599 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 100 HP | 409 HP |
| Engine RPM | 5600 RPM | 7600 RPM |
| Torque | 135 Nm | 405 Nm |
| Torque RPM | 3400 RPM | 5500 RPM |
| Engine Bore Size | 79 mm | 100 mm |
| Engine Stroke Size | 81.5 mm | 76.4 mm |
| Engine Compression Ratio | 9.8:1 | 11.7:1 |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1095 kg | 1425 kg |
| Vehicle Length | 4280 mm | 4450 mm |
| Vehicle Width | 1690 mm | 1290 mm |
| Vehicle Height | 1430 mm | 1810 mm |
| Wheelbase Size | 2640 mm | 2360 mm |
| Fuel Tank Capacity | 52 L | 67 L |
