1978 BMW 725 vs. 1986 Porsche 928
To start off, 1986 Porsche 928 is newer by 8 year(s). Which means there will be less support and parts availability for 1978 BMW 725. In addition, the cost of maintenance, including insurance, on 1978 BMW 725 would be higher. At 2,957 cc (8 cylinders), 1986 Porsche 928 is equipped with a bigger engine. In terms of performance, 1986 Porsche 928 (288 HP) has 140 more horse power than 1978 BMW 725. (148 HP) In normal driving conditions, 1986 Porsche 928 should accelerate faster than 1978 BMW 725.
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, 1986 Porsche 928 (410 Nm) has 195 more torque (in Nm) than 1978 BMW 725. (215 Nm). This means 1986 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 1978 BMW 725.
Compare all specifications:
| 1978 BMW 725 | 1986 Porsche 928 | |
| Make | BMW | Porsche |
| Model | 725 | 928 |
| Year Released | 1978 | 1986 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2495 cc | 2957 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 148 HP | 288 HP |
| Torque | 215 Nm | 410 Nm |
| Engine Compression Ratio | 9.6:1 | 10.0:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4870 mm | 4470 mm |
| Vehicle Width | 1810 mm | 1840 mm |
| Vehicle Height | 1440 mm | 1290 mm |
| Wheelbase Size | 2810 mm | 2500 mm |
