2003 Audi A6 vs. 1991 BMW 525
To start off, 2003 Audi A6 is newer by 12 year(s). Which means there will be less support and parts availability for 1991 BMW 525. In addition, the cost of maintenance, including insurance, on 1991 BMW 525 would be higher. At 2,671 cc (6 cylinders), 2003 Audi A6 is equipped with a bigger engine. In terms of performance, 2003 Audi A6 (226 HP @ 5800 RPM) has 83 more horse power than 1991 BMW 525. (143 HP @ 4800 RPM). In normal driving conditions, 2003 Audi A6 should accelerate faster than 1991 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi A6 weights approximately 102 kg more than 1991 BMW 525. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 1991 BMW 525. In wet, icy, snow, or gravel driving conditions, 2003 Audi A6 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, 2003 Audi A6 (310 Nm @ 1700 RPM) has 50 more torque (in Nm) than 1991 BMW 525. (260 Nm @ 2200 RPM). This means 2003 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW 525.
Compare all specifications:
| 2003 Audi A6 | 1991 BMW 525 | |
| Make | Audi | BMW |
| Model | A6 | 525 |
| Year Released | 2003 | 1991 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 2496 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 226 HP | 143 HP |
| Engine RPM | 5800 RPM | 4800 RPM |
| Torque | 310 Nm | 260 Nm |
| Torque RPM | 1700 RPM | 2200 RPM |
| Engine Bore Size | 81 mm | 80 mm |
| Engine Stroke Size | 86.4 mm | 83 mm |
| Engine Compression Ratio | 9.3:1 | 22.0:1 |
| Top Speed | 245 km/hour | 199 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 11.6 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1662 kg | 1560 kg |
| Vehicle Length | 4800 mm | 4730 mm |
| Vehicle Width | 1820 mm | 1760 mm |
| Vehicle Height | 1460 mm | 1420 mm |
| Wheelbase Size | 2770 mm | 2770 mm |
| Fuel Tank Capacity | 70 L | 80 L |
