2006 Audi A6 vs. 1991 BMW 525
To start off, 2006 Audi A6 is newer by 15 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 2,496 cc (6 cylinders), 1991 BMW 525 is equipped with a bigger engine. In terms of performance, 2006 Audi A6 (168 HP @ 6000 RPM) has 25 more horse power than 1991 BMW 525. (143 HP @ 4800 RPM). In normal driving conditions, 2006 Audi A6 should accelerate faster than 1991 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A6 weights approximately 80 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 2006 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, 2006 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, 1991 BMW 525 (260 Nm @ 2200 RPM) has 30 more torque (in Nm) than 2006 Audi A6. (230 Nm @ 3200 RPM). This means 1991 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A6.
Compare all specifications:
| 2006 Audi A6 | 1991 BMW 525 | |
| Make | Audi | BMW |
| Model | A6 | 525 |
| Year Released | 2006 | 1991 |
| Body Type | Station Wagon | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2392 cc | 2496 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 168 HP | 143 HP |
| Engine RPM | 6000 RPM | 4800 RPM |
| Torque | 230 Nm | 260 Nm |
| Torque RPM | 3200 RPM | 2200 RPM |
| Engine Bore Size | 81 mm | 80 mm |
| Engine Stroke Size | 77.4 mm | 83 mm |
| Engine Compression Ratio | 11.0:1 | 22.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 218 km/hour | 199 km/hour |
| Acceleration 0-100mph | 9.6 seconds | 11.6 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1640 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 |
