2009 Audi A5 vs. 1991 Opel Astra
To start off, 2009 Audi A5 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 1,998 cc (4 cylinders), 1991 Opel Astra is equipped with a bigger engine. In terms of performance, 2009 Audi A5 (168 HP @ 4800 RPM) has 53 more horse power than 1991 Opel Astra. (115 HP @ 5200 RPM). In normal driving conditions, 2009 Audi A5 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A5 weights approximately 345 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, 2009 Audi A5 (250 Nm @ 1500 RPM) has 81 more torque (in Nm) than 1991 Opel Astra. (169 Nm @ 2600 RPM). This means 2009 Audi A5 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 2009 Audi A5 | 1991 Opel Astra | |
| Make | Audi | Opel |
| Model | A5 | Astra |
| Year Released | 2009 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1798 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 168 HP | 115 HP |
| Engine RPM | 4800 RPM | 5200 RPM |
| Torque | 250 Nm | 169 Nm |
| Torque RPM | 1500 RPM | 2600 RPM |
| Engine Bore Size | 82.6 mm | 86 mm |
| Engine Stroke Size | 84.1 mm | 86 mm |
| Engine Compression Ratio | 9.6:1 | 9.2:1 |
| Acceleration 0-100mph | 8.4 seconds | 9.5 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1395 kg | 1050 kg |
| Vehicle Length | 4630 mm | 4090 mm |
| Vehicle Width | 1860 mm | 1690 mm |
| Vehicle Height | 1380 mm | 1420 mm |
| Wheelbase Size | 2760 mm | 2650 mm |
| Fuel Tank Capacity | 65 L | 75 L |
