1990 Audi 100 vs. 1977 BMW 520
To start off, 1990 Audi 100 is newer by 13 year(s). Which means there will be less support and parts availability for 1977 BMW 520. In addition, the cost of maintenance, including insurance, on 1977 BMW 520 would be higher. At 1,951 cc (4 cylinders), 1977 BMW 520 is equipped with a bigger engine. In terms of performance, 1977 BMW 520 (134 HP @ 4000 RPM) has 44 more horse power than 1990 Audi 100. (90 HP @ 5200 RPM) In normal driving conditions, 1977 BMW 520 should accelerate faster than 1990 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 1977 BMW 520 weights approximately 475 kg more than 1990 Audi 100. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1977 BMW 520 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 1977 BMW 520. However, in wet, icy, snow, or gravel driving conditions, 1990 Audi 100, 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, 1977 BMW 520 (280 Nm @ 1750 RPM) has 135 more torque (in Nm) than 1990 Audi 100. (145 Nm @ 3000 RPM). This means 1977 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 1990 Audi 100.
Compare all specifications:
| 1990 Audi 100 | 1977 BMW 520 | |
| Make | Audi | BMW |
| Model | 100 | 520 |
| Year Released | 1990 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 1779 cc | 1951 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 90 HP | 134 HP |
| Engine RPM | 5200 RPM | 4000 RPM |
| Torque | 145 Nm | 280 Nm |
| Torque RPM | 3000 RPM | 1750 RPM |
| Engine Bore Size | 81 mm | 84 mm |
| Engine Stroke Size | 86.4 mm | 88 mm |
| Engine Compression Ratio | 10.0:1 | 19.0:1 |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1090 kg | 1565 kg |
| Vehicle Length | 4800 mm | 4780 mm |
| Vehicle Width | 1820 mm | 1810 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2690 mm | 2840 mm |
| Fuel Tank Capacity | 60 L | 70 L |
