2008 Audi A4 vs. 1991 Opel Astra
To start off, 2008 Audi A4 is newer by 17 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 1,700 cc (4 cylinders), 1991 Opel Astra is equipped with a bigger engine. In terms of performance, 2008 Audi A4 (101 HP @ 5600 RPM) has 45 more horse power than 1991 Opel Astra. (56 HP @ 4600 RPM). In normal driving conditions, 2008 Audi A4 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A4 weights approximately 277 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.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2008 Audi A4 (148 Nm @ 3800 RPM) has 43 more torque (in Nm) than 1991 Opel Astra. (105 Nm @ 2400 RPM). This means 2008 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 2008 Audi A4 | 1991 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 2008 | 1991 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1595 cc | 1700 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 101 HP | 56 HP |
| Engine RPM | 5600 RPM | 4600 RPM |
| Torque | 148 Nm | 105 Nm |
| Torque RPM | 3800 RPM | 2400 RPM |
| Engine Bore Size | 81 mm | 82.5 mm |
| Engine Stroke Size | 77.4 mm | 79.5 mm |
| Engine Compression Ratio | 10.5:1 | 23.0:1 |
| Top Speed | 190 km/hour | 149 km/hour |
| Acceleration 0-100mph | 12.6 seconds | 19.8 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1302 kg | 1025 kg |
| Vehicle Length | 4590 mm | 4280 mm |
| Vehicle Width | 1780 mm | 1690 mm |
| Vehicle Height | 1430 mm | 1430 mm |
| Wheelbase Size | 2650 mm | 2640 mm |
| Fuel Tank Capacity | 70 L | 75 L |
