1981 BMW 725 vs. 1979 Mercedes-Benz 300
To start off, 1981 BMW 725 is newer by 2 year(s). Which means there will be less support and parts availability for 1979 Mercedes-Benz 300. In addition, the cost of maintenance, including insurance, on 1979 Mercedes-Benz 300 would be higher. At 2,997 cc (5 cylinders), 1979 Mercedes-Benz 300 is equipped with a bigger engine. In terms of performance, 1981 BMW 725 (148 HP @ 5500 RPM) has 61 more horse power than 1979 Mercedes-Benz 300. (87 HP @ 4000 RPM). In normal driving conditions, 1981 BMW 725 should accelerate faster than 1979 Mercedes-Benz 300.
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, 1981 BMW 725 (215 Nm @ 4000 RPM) has 43 more torque (in Nm) than 1979 Mercedes-Benz 300. (172 Nm @ 2400 RPM). This means 1981 BMW 725 will have an easier job in driving up hills or pulling heavy equipment than 1979 Mercedes-Benz 300.
Compare all specifications:
| 1981 BMW 725 | 1979 Mercedes-Benz 300 | |
| Make | BMW | Mercedes-Benz |
| Model | 725 | 300 |
| Year Released | 1981 | 1979 |
| Engine Position | Front | Front |
| Engine Size | 2493 cc | 2997 cc |
| Engine Cylinders | 6 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 87 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 215 Nm | 172 Nm |
| Torque RPM | 4000 RPM | 2400 RPM |
| Engine Bore Size | 86 mm | 90.9 mm |
| Engine Stroke Size | 71.6 mm | 92.4 mm |
| Engine Compression Ratio | 9.6:1 | 21.0:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4870 mm | 4730 mm |
| Vehicle Width | 1810 mm | 1790 mm |
| Vehicle Height | 1440 mm | 1450 mm |
| Wheelbase Size | 2810 mm | 2800 mm |
