1981 BMW 725 vs. 2011 BMW 750
To start off, 2011 BMW 750 is newer by 30 year(s). Which means there will be less support and parts availability for 1981 BMW 725. In addition, the cost of maintenance, including insurance, on 1981 BMW 725 would be higher. At 4,400 cc (8 cylinders), 2011 BMW 750 is equipped with a bigger engine. In terms of performance, 2011 BMW 750 (400 HP @ 5500 RPM) has 252 more horse power than 1981 BMW 725. (148 HP @ 5500 RPM) In normal driving conditions, 2011 BMW 750 should accelerate faster than 1981 BMW 725.
Because 2011 BMW 750 is all wheel drive (AWD), it will have significant more traction and grip than 1981 BMW 725. In wet, icy, snow, or gravel driving conditions, 2011 BMW 750 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, 2011 BMW 750 (609 Nm @ 1750 RPM) has 394 more torque (in Nm) than 1981 BMW 725. (215 Nm @ 4000 RPM). This means 2011 BMW 750 will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 725.
Compare all specifications:
| 1981 BMW 725 | 2011 BMW 750 | |
| Make | BMW | BMW |
| Model | 725 | 750 |
| Year Released | 1981 | 2011 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2493 cc | 4400 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 148 HP | 400 HP |
| Engine RPM | 5500 RPM | 5500 RPM |
| Torque | 215 Nm | 609 Nm |
| Torque RPM | 4000 RPM | 1750 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | AWD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4870 mm | 5215 mm |
| Vehicle Width | 1810 mm | 1902 mm |
| Vehicle Height | 1440 mm | 1481 mm |
| Wheelbase Size | 2810 mm | 3211 mm |
