1981 BMW 520 vs. 2011 Saab 03-Sep
To start off, 2011 Saab 03-Sep is newer by 30 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 2,000 cc (4 cylinders), 2011 Saab 03-Sep is equipped with a bigger engine. In terms of performance, 2011 Saab 03-Sep (180 HP @ 4000 RPM) has 57 more horse power than 1981 BMW 520. (123 HP @ 5800 RPM) In normal driving conditions, 2011 Saab 03-Sep should accelerate faster than 1981 BMW 520.
Because 2011 Saab 03-Sep is all wheel drive (AWD), it will have significant more traction and grip than 1981 BMW 520. In wet, icy, snow, or gravel driving conditions, 2011 Saab 03-Sep 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, 2011 Saab 03-Sep (400 Nm @ 1800 RPM) has 230 more torque (in Nm) than 1981 BMW 520. (170 Nm @ 4000 RPM). This means 2011 Saab 03-Sep will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 520.
Compare all specifications:
| 1981 BMW 520 | 2011 Saab 03-Sep | |
| Make | BMW | Saab |
| Model | 520 | 03-Sep |
| Year Released | 1981 | 2011 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 2000 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 180 HP |
| Engine RPM | 5800 RPM | 4000 RPM |
| Torque | 170 Nm | 400 Nm |
| Torque RPM | 4000 RPM | 1800 RPM |
| Engine Bore Size | 80 mm | 90.4 mm |
| Engine Stroke Size | 66 mm | 82 mm |
| Top Speed | 185 km/hour | 225 km/hour |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | 6-speed manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Fuel Tank Capacity | 70 L | 58 L |
