1977 BMW 520 vs. 1972 Fiat 125
To start off, 1977 BMW 520 is newer by 5 year(s). Which means there will be less support and parts availability for 1972 Fiat 125. In addition, the cost of maintenance, including insurance, on 1972 Fiat 125 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 30 more horse power than 1972 Fiat 125. (90 HP @ 5600 RPM). In normal driving conditions, 1977 BMW 520 should accelerate faster than 1972 Fiat 125. With that said, vehicle weight also plays an important factor in acceleration. 1977 BMW 520 weights approximately 350 kg more than 1972 Fiat 125. 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 (160 Nm @ 4000 RPM) has 29 more torque (in Nm) than 1972 Fiat 125. (131 Nm @ 4000 RPM). This means 1977 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 1972 Fiat 125.
Compare all specifications:
| 1977 BMW 520 | 1972 Fiat 125 | |
| Make | BMW | Fiat |
| Model | 520 | 125 |
| Year Released | 1977 | 1972 |
| Engine Position | Front | Front |
| Engine Size | 1990 cc | 1608 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 120 HP | 90 HP |
| Engine RPM | 6000 RPM | 5600 RPM |
| Torque | 160 Nm | 131 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 80 mm | 80 mm |
| Engine Stroke Size | 66 mm | 80 mm |
| Engine Compression Ratio | 9.2:1 | 8.8:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 180 km/hour | 161 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1310 kg | 960 kg |
| Vehicle Length | 4630 mm | 4230 mm |
| Vehicle Width | 1700 mm | 1610 mm |
| Vehicle Height | 1430 mm | 1450 mm |
| Wheelbase Size | 2640 mm | 2430 mm |
| Fuel Tank Capacity | 70 L | 45 L |
