1977 BMW 520 vs. 2005 Mazda 6
To start off, 2005 Mazda 6 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 1,990 cc (6 cylinders), 1977 BMW 520 is equipped with a bigger engine. In terms of performance, 1977 BMW 520 (120 HP @ 6000 RPM) has 2 more horse power than 2005 Mazda 6. (118 HP @ 5500 RPM). In normal driving conditions, 1977 BMW 520 should accelerate faster than 2005 Mazda 6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mazda 6 weights approximately 35 kg more than 1977 BMW 520.
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, 2005 Mazda 6, 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, 2005 Mazda 6 (165 Nm @ 4500 RPM) has 5 more torque (in Nm) than 1977 BMW 520. (160 Nm @ 4000 RPM). This means 2005 Mazda 6 will have an easier job in driving up hills or pulling heavy equipment than 1977 BMW 520.
Compare all specifications:
| 1977 BMW 520 | 2005 Mazda 6 | |
| Make | BMW | Mazda |
| Model | 520 | 6 |
| Year Released | 1977 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1990 cc | 1798 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 120 HP | 118 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 160 Nm | 165 Nm |
| Torque RPM | 4000 RPM | 4500 RPM |
| Engine Bore Size | 80 mm | 83 mm |
| Engine Stroke Size | 66 mm | 83.1 mm |
| Engine Compression Ratio | 9.2:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 180 km/hour | 197 km/hour |
| Acceleration 0-100mph | 12 seconds | 10.7 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1310 kg | 1345 kg |
| Vehicle Length | 4630 mm | 4690 mm |
| Vehicle Width | 1700 mm | 1790 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2640 mm | 2760 mm |
| Fuel Tank Capacity | 70 L | 64 L |
