1978 BMW 725 vs. 2005 Porsche Cayenne
To start off, 2005 Porsche Cayenne is newer by 27 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 3,195 cc (6 cylinders), 2005 Porsche Cayenne is equipped with a bigger engine. In terms of performance, 2005 Porsche Cayenne (247 HP @ 6000 RPM) has 99 more horse power than 1978 BMW 725. (148 HP @ 5500 RPM) In normal driving conditions, 2005 Porsche Cayenne should accelerate faster than 1978 BMW 725.
Because 2005 Porsche Cayenne is four wheel drive (4WD), it will have significant more traction and grip than 1978 BMW 725. In wet, icy, snow, or gravel driving conditions, 2005 Porsche Cayenne will offer significantly more control. 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, 2005 Porsche Cayenne (311 Nm) has 96 more torque (in Nm) than 1978 BMW 725. (215 Nm). This means 2005 Porsche Cayenne will have an easier job in driving up hills or pulling heavy equipment than 1978 BMW 725.
Compare all specifications:
| 1978 BMW 725 | 2005 Porsche Cayenne | |
| Make | BMW | Porsche |
| Model | 725 | Cayenne |
| Year Released | 1978 | 2005 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2495 cc | 3195 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 148 HP | 247 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 215 Nm | 311 Nm |
| Engine Bore Size | 86.1 mm | 84 mm |
| Engine Stroke Size | 71.6 mm | 96 mm |
| Engine Compression Ratio | 9.6:1 | 11.5:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4870 mm | 4790 mm |
| Vehicle Width | 1810 mm | 1930 mm |
| Vehicle Height | 1440 mm | 1710 mm |
| Wheelbase Size | 2810 mm | 2860 mm |
