1981 BMW 745 vs. 1977 Porsche 930
To start off, 1981 BMW 745 is newer by 4 year(s). Which means there will be less support and parts availability for 1977 Porsche 930. In addition, the cost of maintenance, including insurance, on 1977 Porsche 930 would be higher. At 3,430 cc (6 cylinders), 1981 BMW 745 is equipped with a bigger engine. In terms of performance, 1977 Porsche 930 (257 HP @ 5500 RPM) has 5 more horse power than 1981 BMW 745. (252 HP @ 5200 RPM) In normal driving conditions, 1977 Porsche 930 should accelerate faster than 1981 BMW 745. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 745 weights approximately 450 kg more than 1977 Porsche 930.
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, 1981 BMW 745 (380 Nm @ 2200 RPM) has 37 more torque (in Nm) than 1977 Porsche 930. (343 Nm @ 3000 RPM). This means 1981 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 1977 Porsche 930.
Compare all specifications:
| 1981 BMW 745 | 1977 Porsche 930 | |
| Make | BMW | Porsche |
| Model | 745 | 930 |
| Year Released | 1981 | 1977 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 3430 cc | 2994 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 252 HP | 257 HP |
| Engine RPM | 5200 RPM | 5500 RPM |
| Torque | 380 Nm | 343 Nm |
| Torque RPM | 2200 RPM | 3000 RPM |
| Engine Bore Size | 92 mm | 95 mm |
| Engine Stroke Size | 86 mm | 70.4 mm |
| Engine Compression Ratio | 8.0:1 | 6.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1590 kg | 1140 kg |
| Vehicle Length | 4870 mm | 4300 mm |
| Vehicle Width | 1810 mm | 1780 mm |
| Vehicle Height | 1440 mm | 1320 mm |
| Wheelbase Size | 2800 mm | 2510 mm |
