1977 BMW 520 vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 28 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 3,600 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (414 HP @ 6000 RPM) has 280 more horse power than 1977 BMW 520. (134 HP @ 4000 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1977 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche 911 weights approximately 175 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.
Because 2005 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1977 BMW 520. In wet, icy, snow, or gravel driving conditions, 2005 Porsche 911 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, 2005 Porsche 911 (560 Nm @ 2700 RPM) has 280 more torque (in Nm) than 1977 BMW 520. (280 Nm @ 1750 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1977 BMW 520.
Compare all specifications:
| 1977 BMW 520 | 2005 Porsche 911 | |
| Make | BMW | Porsche |
| Model | 520 | 911 |
| Year Released | 1977 | 2005 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 1951 cc | 3600 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 134 HP | 414 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 280 Nm | 560 Nm |
| Torque RPM | 1750 RPM | 2700 RPM |
| Engine Bore Size | 84 mm | 100 mm |
| Engine Stroke Size | 88 mm | 76.4 mm |
| Engine Compression Ratio | 19.0:1 | 9.4:1 |
| Top Speed | 206 km/hour | 305 km/hour |
| Acceleration 0-100mph | 10.9 seconds | 4.3 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1565 kg | 1740 kg |
| Vehicle Length | 4780 mm | 4440 mm |
| Vehicle Width | 1810 mm | 1840 mm |
| Vehicle Height | 1440 mm | 1300 mm |
| Wheelbase Size | 2840 mm | 2360 mm |
| Fuel Consumption Overall | 5.9 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 70 L | 64 L |
