1978 BMW 725 vs. 1992 Porsche 911
To start off, 1992 Porsche 911 is newer by 14 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 3,594 cc (6 cylinders), 1992 Porsche 911 is equipped with a bigger engine. In terms of performance, 1992 Porsche 911 (355 HP @ 5550 RPM) has 207 more horse power than 1978 BMW 725. (148 HP @ 5500 RPM) In normal driving conditions, 1992 Porsche 911 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, 1992 Porsche 911 (520 Nm @ 4200 RPM) has 305 more torque (in Nm) than 1978 BMW 725. (215 Nm @ 4000 RPM). This means 1992 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1978 BMW 725.
Compare all specifications:
| 1978 BMW 725 | 1992 Porsche 911 | |
| Make | BMW | Porsche |
| Model | 725 | 911 |
| Year Released | 1978 | 1992 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2495 cc | 3594 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 148 HP | 355 HP |
| Engine RPM | 5500 RPM | 5550 RPM |
| Torque | 215 Nm | 520 Nm |
| Torque RPM | 4000 RPM | 4200 RPM |
| Engine Bore Size | 86.1 mm | 100 mm |
| Engine Stroke Size | 71.6 mm | 76.4 mm |
| Engine Compression Ratio | 9.6:1 | 7.5:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4870 mm | 4260 mm |
| Vehicle Width | 1810 mm | 1760 mm |
| Vehicle Height | 1440 mm | 1310 mm |
| Wheelbase Size | 2810 mm | 2270 mm |
