1979 Subaru Rex 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 Subaru Rex. In addition, the cost of maintenance, including insurance, on 1979 Subaru Rex would be higher. At 3,000 cc (6 cylinders), 2013 Mercedes-Benz M is equipped with a bigger engine. In terms of performance, 2013 Mercedes-Benz M (237 HP @ 3600 RPM) has 208 more horse power than 1979 Subaru Rex. (29 HP @ 6200 RPM) In normal driving conditions, 2013 Mercedes-Benz M should accelerate faster than 1979 Subaru Rex. With that said, vehicle weight also plays an important factor in acceleration. 2013 Mercedes-Benz M weights approximately 1640 kg more than 1979 Subaru Rex. 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 Subaru Rex. 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 (617 Nm @ 2400 RPM) has 575 more torque (in Nm) than 1979 Subaru Rex. (42 Nm @ 3500 RPM). This means 2013 Mercedes-Benz M will have an easier job in driving up hills or pulling heavy equipment than 1979 Subaru Rex.
Compare all specifications:
| 1979 Subaru Rex | 2013 Mercedes-Benz M | |
| Make | Subaru | Mercedes-Benz |
| Model | Rex | M |
| Year Released | 1979 | 2013 |
| Engine Position | Rear | Front |
| Engine Size | 543 cc | 3000 cc |
| Engine Cylinders | 2 cylinders | 6 cylinders |
| Engine Type | in-line | electric |
| Horse Power | 29 HP | 237 HP |
| Engine RPM | 6200 RPM | 3600 RPM |
| Torque | 42 Nm | 617 Nm |
| Torque RPM | 3500 RPM | 2400 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | 6-speed manual |
| Vehicle Weight | 535 kg | 2175 kg |
| Vehicle Length | 3000 mm | 4804 mm |
| Vehicle Width | 1300 mm | 2141 mm |
| Vehicle Height | 1290 mm | 1796 mm |
| Wheelbase Size | 1930 mm | 2915 mm |
