2009 BMW 125 vs. 1977 BMW 520
To start off, 2009 BMW 125 is newer by 32 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 2,996 cc (6 cylinders), 2009 BMW 125 is equipped with a bigger engine. In terms of performance, 2009 BMW 125 (215 HP @ 6100 RPM) has 81 more horse power than 1977 BMW 520. (134 HP @ 4000 RPM). In normal driving conditions, 2009 BMW 125 should accelerate faster than 1977 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 125 weights approximately 20 kg more than 1977 BMW 520. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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 9 more torque (in Nm) than 2009 BMW 125. (271 Nm @ 2500 RPM). This means 1977 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 125.
Compare all specifications:
| 2009 BMW 125 | 1977 BMW 520 | |
| Make | BMW | BMW |
| Model | 125 | 520 |
| Year Released | 2009 | 1977 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 1951 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 134 HP |
| Engine RPM | 6100 RPM | 4000 RPM |
| Torque | 271 Nm | 280 Nm |
| Torque RPM | 2500 RPM | 1750 RPM |
| Top Speed | 238 km/hour | 206 km/hour |
| Acceleration 0-100mph | 6.8 seconds | 10.9 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1585 kg | 1565 kg |
| Vehicle Length | 4370 mm | 4780 mm |
| Vehicle Width | 1750 mm | 1810 mm |
| Vehicle Height | 1420 mm | 1440 mm |
| Wheelbase Size | 2670 mm | 2840 mm |
| Fuel Consumption Overall | 8.1 L/100km | 5.9 L/100km |
| Fuel Tank Capacity | 53 L | 70 L |
