1979 BMW 728 vs. 2013 Mercedes-Benz M
To start off, 2013 Mercedes-Benz M is newer by 34 year(s). Which means there will be less support and parts availability for 1979 BMW 728. In addition, the cost of maintenance, including insurance, on 1979 BMW 728 would be higher. At 5,500 cc (8 cylinders), 2013 Mercedes-Benz M is equipped with a bigger engine. In terms of performance, 2013 Mercedes-Benz M (511 HP @ 5250 RPM) has 330 more horse power than 1979 BMW 728. (181 HP @ 5800 RPM) In normal driving conditions, 2013 Mercedes-Benz M should accelerate faster than 1979 BMW 728. With that said, vehicle weight also plays an important factor in acceleration. 2013 Mercedes-Benz M weights approximately 875 kg more than 1979 BMW 728. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 Mercedes-Benz M is four wheel drive (4WD), it will have significant more traction and grip than 1979 BMW 728. In wet, icy, snow, or gravel driving conditions, 2013 Mercedes-Benz M 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, 2013 Mercedes-Benz M (700 Nm @ 5000 RPM) has 460 more torque (in Nm) than 1979 BMW 728. (240 Nm @ 4200 RPM). This means 2013 Mercedes-Benz M will have an easier job in driving up hills or pulling heavy equipment than 1979 BMW 728.
Compare all specifications:
| 1979 BMW 728 | 2013 Mercedes-Benz M | |
| Make | BMW | Mercedes-Benz |
| Model | 728 | M |
| Year Released | 1979 | 2013 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2788 cc | 5500 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | electric |
| Horse Power | 181 HP | 511 HP |
| Engine RPM | 5800 RPM | 5250 RPM |
| Torque | 240 Nm | 700 Nm |
| Torque RPM | 4200 RPM | 5000 RPM |
| Engine Bore Size | 86 mm | 98 mm |
| Engine Stroke Size | 80 mm | 90 mm |
| Engine Compression Ratio | 9.3:1 | 10.0:1 |
| Top Speed | 201 km/hour | 250 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | 6-speed manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1470 kg | 2345 kg |
| Vehicle Length | 4870 mm | 4817 mm |
| Vehicle Width | 1810 mm | 2141 mm |
| Vehicle Height | 1440 mm | 1796 mm |
| Wheelbase Size | 2800 mm | 2915 mm |
