2005 BMW 730 vs. 1983 BMW 725
To start off, 2005 BMW 730 is newer by 22 year(s). Which means there will be less support and parts availability for 1983 BMW 725. In addition, the cost of maintenance, including insurance, on 1983 BMW 725 would be higher. At 2,993 cc (6 cylinders), 2005 BMW 730 is equipped with a bigger engine. In terms of performance, 2005 BMW 730 (228 HP @ 5900 RPM) has 80 more horse power than 1983 BMW 725. (148 HP @ 5500 RPM). In normal driving conditions, 2005 BMW 730 should accelerate faster than 1983 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, 2005 BMW 730 (300 Nm @ 3500 RPM) has 85 more torque (in Nm) than 1983 BMW 725. (215 Nm @ 4000 RPM). This means 2005 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 1983 BMW 725.
Compare all specifications:
| 2005 BMW 730 | 1983 BMW 725 | |
| Make | BMW | BMW |
| Model | 730 | 725 |
| Year Released | 2005 | 1983 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2495 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 228 HP | 148 HP |
| Engine RPM | 5900 RPM | 5500 RPM |
| Torque | 300 Nm | 215 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Compression Ratio | 10.0:1 | 9.6:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 5190 mm | 4870 mm |
| Vehicle Width | 1910 mm | 1810 mm |
| Vehicle Height | 1490 mm | 1440 mm |
| Wheelbase Size | 3140 mm | 2810 mm |
