2007 Audi A4 vs. 1991 BMW 525
To start off, 2007 Audi A4 is newer by 16 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, 1991 BMW 525 (143 HP @ 4800 RPM) has 29 more horse power than 2007 Audi A4. (114 HP @ 4000 RPM) In normal driving conditions, 1991 BMW 525 should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 50 kg more than 1991 BMW 525.
Because 1991 BMW 525 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1991 BMW 525. However, in wet, icy, snow, or gravel driving conditions, 2007 Audi A4, being front wheel drive (FWD), will offer much better control with better grip. 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, 2007 Audi A4 (285 Nm @ 1900 RPM) has 25 more torque (in Nm) than 1991 BMW 525. (260 Nm @ 2200 RPM). This means 2007 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW 525.
Compare all specifications:
| 2007 Audi A4 | 1991 BMW 525 | |
| Make | Audi | BMW |
| Model | A4 | 525 |
| Year Released | 2007 | 1991 |
| Body Type | Station Wagon | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1895 cc | 2496 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 114 HP | 143 HP |
| Engine RPM | 4000 RPM | 4800 RPM |
| Torque | 285 Nm | 260 Nm |
| Torque RPM | 1900 RPM | 2200 RPM |
| Engine Bore Size | 79.5 mm | 80 mm |
| Engine Stroke Size | 95.5 mm | 83 mm |
| Engine Compression Ratio | 19.0:1 | 22.0:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 197 km/hour | 199 km/hour |
| Acceleration 0-100mph | 11.5 seconds | 11.6 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1610 kg | 1560 kg |
| Vehicle Length | 4590 mm | 4730 mm |
| Vehicle Width | 1780 mm | 1760 mm |
| Vehicle Height | 1430 mm | 1420 mm |
| Wheelbase Size | 2660 mm | 2770 mm |
| Fuel Tank Capacity | 70 L | 80 L |
