1991 Opel Astra vs. 1988 Porsche 911
To start off, 1991 Opel Astra is newer by 3 year(s). Which means there will be less support and parts availability for 1988 Porsche 911. In addition, the cost of maintenance, including insurance, on 1988 Porsche 911 would be higher. At 3,598 cc (6 cylinders), 1988 Porsche 911 is equipped with a bigger engine. In terms of performance, 1988 Porsche 911 (246 HP @ 6100 RPM) has 146 more horse power than 1991 Opel Astra. (100 HP @ 5600 RPM) In normal driving conditions, 1988 Porsche 911 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 1988 Porsche 911 weights approximately 355 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 1988 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Opel Astra. In wet, icy, snow, or gravel driving conditions, 1988 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, 1988 Porsche 911 (310 Nm @ 4800 RPM) has 175 more torque (in Nm) than 1991 Opel Astra. (135 Nm @ 3400 RPM). This means 1988 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 | 1988 Porsche 911 | |
| Make | Opel | Porsche |
| Model | Astra | 911 |
| Year Released | 1991 | 1988 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 1597 cc | 3598 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 100 HP | 246 HP |
| Engine RPM | 5600 RPM | 6100 RPM |
| Torque | 135 Nm | 310 Nm |
| Torque RPM | 3400 RPM | 4800 RPM |
| Engine Bore Size | 79 mm | 100 mm |
| Engine Stroke Size | 81.5 mm | 76.4 mm |
| Engine Compression Ratio | 9.8:1 | 11.3:1 |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1095 kg | 1450 kg |
| Vehicle Length | 4280 mm | 4260 mm |
| Vehicle Width | 1690 mm | 1660 mm |
| Vehicle Height | 1430 mm | 1330 mm |
| Wheelbase Size | 2640 mm | 2270 mm |
| Fuel Tank Capacity | 52 L | 77 L |
