2000 Audi A4 vs. 1981 BMW 520
To start off, 2000 Audi A4 is newer by 19 year(s). Which means there will be less support and parts availability for 1981 BMW 520. In addition, the cost of maintenance, including insurance, on 1981 BMW 520 would be higher. At 2,393 cc (6 cylinders), 2000 Audi A4 is equipped with a bigger engine. In terms of performance, 2000 Audi A4 (163 HP @ 6000 RPM) has 40 more horse power than 1981 BMW 520. (123 HP @ 5800 RPM). In normal driving conditions, 2000 Audi A4 should accelerate faster than 1981 BMW 520.
Because 2000 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1981 BMW 520. In wet, icy, snow, or gravel driving conditions, 2000 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, 2000 Audi A4 (234 Nm @ 3200 RPM) has 64 more torque (in Nm) than 1981 BMW 520. (170 Nm @ 4000 RPM). This means 2000 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 520.
Compare all specifications:
| 2000 Audi A4 | 1981 BMW 520 | |
| Make | Audi | BMW |
| Model | A4 | 520 |
| Year Released | 2000 | 1981 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 1991 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 163 HP | 123 HP |
| Engine RPM | 6000 RPM | 5800 RPM |
| Torque | 234 Nm | 170 Nm |
| Torque RPM | 3200 RPM | 4000 RPM |
| Engine Bore Size | 81 mm | 80 mm |
| Engine Stroke Size | 77.4 mm | 66 mm |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Length | 4490 mm | 4630 mm |
| Vehicle Width | 1740 mm | 1710 mm |
| Vehicle Height | 1420 mm | 1430 mm |
| Wheelbase Size | 2610 mm | 2630 mm |
| Fuel Tank Capacity | 70 L | 70 L |
