1981 Bitter SC vs. 1977 BMW 520
To start off, 1981 Bitter SC is newer by 4 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 2,969 cc (6 cylinders), 1981 Bitter SC is equipped with a bigger engine. In terms of performance, 1981 Bitter SC (177 HP @ 5800 RPM) has 43 more horse power than 1977 BMW 520. (134 HP @ 4000 RPM). In normal driving conditions, 1981 Bitter SC should accelerate faster than 1977 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 1977 BMW 520 weights approximately 215 kg more than 1981 Bitter SC.
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 32 more torque (in Nm) than 1981 Bitter SC. (248 Nm @ 4200 RPM). This means 1977 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 1981 Bitter SC.
Compare all specifications:
| 1981 Bitter SC | 1977 BMW 520 | |
| Make | Bitter | BMW |
| Model | SC | 520 |
| Year Released | 1981 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 2969 cc | 1951 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 177 HP | 134 HP |
| Engine RPM | 5800 RPM | 4000 RPM |
| Torque | 248 Nm | 280 Nm |
| Torque RPM | 4200 RPM | 1750 RPM |
| Engine Bore Size | 95.1 mm | 84 mm |
| Engine Stroke Size | 69.8 mm | 88 mm |
| Engine Compression Ratio | 9.4:1 | 19.0:1 |
| Acceleration 0-100mph | 10.1 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 | 1350 kg | 1565 kg |
| Vehicle Length | 4920 mm | 4780 mm |
| Vehicle Width | 1830 mm | 1810 mm |
| Vehicle Height | 1360 mm | 1440 mm |
| Wheelbase Size | 2690 mm | 2840 mm |
