1978 BMW 725 vs. 2010 BMW X5
To start off, 2010 BMW X5 is newer by 32 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 3,000 cc (6 cylinders), 2010 BMW X5 is equipped with a bigger engine. In terms of performance, 2010 BMW X5 (260 HP @ 6600 RPM) has 112 more horse power than 1978 BMW 725. (148 HP @ 5500 RPM) In normal driving conditions, 2010 BMW X5 should accelerate faster than 1978 BMW 725.
Because 2010 BMW X5 is all wheel drive (AWD), it will have significant more traction and grip than 1978 BMW 725. In wet, icy, snow, or gravel driving conditions, 2010 BMW X5 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, 2010 BMW X5 (305 Nm @ 2750 RPM) has 90 more torque (in Nm) than 1978 BMW 725. (215 Nm @ 4000 RPM). This means 2010 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1978 BMW 725.
Compare all specifications:
| 1978 BMW 725 | 2010 BMW X5 | |
| Make | BMW | BMW |
| Model | 725 | X5 |
| Year Released | 1978 | 2010 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2495 cc | 3000 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 148 HP | 260 HP |
| Engine RPM | 5500 RPM | 6600 RPM |
| Torque | 215 Nm | 305 Nm |
| Torque RPM | 4000 RPM | 2750 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | AWD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4870 mm | 4854 mm |
| Vehicle Width | 1810 mm | 1933 mm |
| Vehicle Height | 1440 mm | 1765 mm |
| Wheelbase Size | 2810 mm | 2934 mm |
