2000 Audi S3 vs. 1981 BMW 745
To start off, 2000 Audi S3 is newer by 19 year(s). Which means there will be less support and parts availability for 1981 BMW 745. In addition, the cost of maintenance, including insurance, on 1981 BMW 745 would be higher. At 3,430 cc (6 cylinders), 1981 BMW 745 is equipped with a bigger engine. In terms of performance, 1981 BMW 745 (252 HP @ 5200 RPM) has 42 more horse power than 2000 Audi S3. (210 HP @ 5800 RPM) In normal driving conditions, 1981 BMW 745 should accelerate faster than 2000 Audi S3. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 745 weights approximately 60 kg more than 2000 Audi S3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2000 Audi S3 is four wheel drive (4WD), it will have significant more traction and grip than 1981 BMW 745. In wet, icy, snow, or gravel driving conditions, 2000 Audi S3 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, 1981 BMW 745 (380 Nm @ 2200 RPM) has 110 more torque (in Nm) than 2000 Audi S3. (270 Nm @ 2100 RPM). This means 1981 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 2000 Audi S3.
Compare all specifications:
| 2000 Audi S3 | 1981 BMW 745 | |
| Make | Audi | BMW |
| Model | S3 | 745 |
| Year Released | 2000 | 1981 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 3430 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 210 HP | 252 HP |
| Engine RPM | 5800 RPM | 5200 RPM |
| Torque | 270 Nm | 380 Nm |
| Torque RPM | 2100 RPM | 2200 RPM |
| Engine Bore Size | 81 mm | 92 mm |
| Engine Stroke Size | 86.4 mm | 86 mm |
| Engine Compression Ratio | 9.0:1 | 8.0:1 |
| Top Speed | 238 km/hour | 220 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1530 kg | 1590 kg |
| Vehicle Length | 4160 mm | 4870 mm |
| Vehicle Width | 1760 mm | 1810 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2520 mm | 2800 mm |
| Fuel Tank Capacity | 42 L | 100 L |
