2009 Audi A4 vs. 1991 Rover 820
To start off, 2009 Audi A4 is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Rover 820. In addition, the cost of maintenance, including insurance, on 1991 Rover 820 would be higher. At 1,994 cc (4 cylinders), 1991 Rover 820 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (218 HP @ 5900 RPM) has 38 more horse power than 1991 Rover 820. (180 HP @ 6000 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 1991 Rover 820. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 187 kg more than 1991 Rover 820. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Rover 820. In wet, icy, snow, or gravel driving conditions, 2009 Audi A4 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, 2009 Audi A4 (300 Nm @ 2200 RPM) has 85 more torque (in Nm) than 1991 Rover 820. (215 Nm @ 2000 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Rover 820.
Compare all specifications:
| 2009 Audi A4 | 1991 Rover 820 | |
| Make | Audi | Rover |
| Model | A4 | 820 |
| Year Released | 2009 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 1994 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 218 HP | 180 HP |
| Engine RPM | 5900 RPM | 6000 RPM |
| Torque | 300 Nm | 215 Nm |
| Torque RPM | 2200 RPM | 2000 RPM |
| Engine Bore Size | 82.5 mm | 84.5 mm |
| Engine Stroke Size | 92.8 mm | 89 mm |
| Engine Compression Ratio | 10.5:1 | 8.5:1 |
| Top Speed | 244 km/hour | 217 km/hour |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1595 kg | 1408 kg |
| Vehicle Length | 4610 mm | 4890 mm |
| Vehicle Width | 1780 mm | 1740 mm |
| Vehicle Height | 1400 mm | 1400 mm |
| Wheelbase Size | 2660 mm | 2780 mm |
| Fuel Tank Capacity | 63 L | 68 L |
