2004 Audi A4 vs. 1973 BMW 525
To start off, 2004 Audi A4 is newer by 31 year(s). Which means there will be less support and parts availability for 1973 BMW 525. In addition, the cost of maintenance, including insurance, on 1973 BMW 525 would be higher. At 2,976 cc (6 cylinders), 2004 Audi A4 is equipped with a bigger engine. In terms of performance, 2004 Audi A4 (223 HP @ 6300 RPM) has 80 more horse power than 1973 BMW 525. (143 HP @ 6000 RPM). In normal driving conditions, 2004 Audi A4 should accelerate faster than 1973 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A4 weights approximately 230 kg more than 1973 BMW 525. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1973 BMW 525. In wet, icy, snow, or gravel driving conditions, 2004 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, 2004 Audi A4 (300 Nm @ 3200 RPM) has 92 more torque (in Nm) than 1973 BMW 525. (208 Nm @ 4000 RPM). This means 2004 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1973 BMW 525.
Compare all specifications:
| 2004 Audi A4 | 1973 BMW 525 | |
| Make | Audi | BMW |
| Model | A4 | 525 |
| Year Released | 2004 | 1973 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 2494 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 223 HP | 143 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 300 Nm | 208 Nm |
| Torque RPM | 3200 RPM | 4000 RPM |
| Engine Bore Size | 82.5 mm | 86 mm |
| Engine Stroke Size | 92.8 mm | 71.6 mm |
| Engine Compression Ratio | 11.0:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 236 km/hour | 192 km/hour |
| Acceleration 0-100mph | 9.2 seconds | 10.5 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1610 kg | 1380 kg |
| Vehicle Length | 4550 mm | 4630 mm |
| Vehicle Width | 1780 mm | 1700 mm |
| Vehicle Height | 1430 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2640 mm |
| Fuel Tank Capacity | 66 L | 70 L |
