1986 Renault 21 vs. 2013 Mercedes-Benz M
To start off, 2013 Mercedes-Benz M is newer by 27 year(s). Which means there will be less support and parts availability for 1986 Renault 21. In addition, the cost of maintenance, including insurance, on 1986 Renault 21 would be higher. At 3,500 cc (6 cylinders), 2013 Mercedes-Benz M is equipped with a bigger engine. In terms of performance, 2013 Mercedes-Benz M (298 HP @ 6500 RPM) has 223 more horse power than 1986 Renault 21. (75 HP @ 5000 RPM) In normal driving conditions, 2013 Mercedes-Benz M should accelerate faster than 1986 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2013 Mercedes-Benz M weights approximately 1175 kg more than 1986 Renault 21. 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 rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2013 Mercedes-Benz M. However, in wet, icy, snow, or gravel driving conditions, 1986 Renault 21, being front wheel drive (FWD), will offer much better control with better grip. 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 (370 Nm @ 5250 RPM) has 241 more torque (in Nm) than 1986 Renault 21. (129 Nm @ 3250 RPM). This means 2013 Mercedes-Benz M will have an easier job in driving up hills or pulling heavy equipment than 1986 Renault 21.
Compare all specifications:
| 1986 Renault 21 | 2013 Mercedes-Benz M | |
| Make | Renault | Mercedes-Benz |
| Model | 21 | M |
| Year Released | 1986 | 2013 |
| Engine Position | Front | Front |
| Engine Size | 1721 cc | 3500 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | electric |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 75 HP | 298 HP |
| Engine RPM | 5000 RPM | 6500 RPM |
| Torque | 129 Nm | 370 Nm |
| Torque RPM | 3250 RPM | 5250 RPM |
| Engine Bore Size | 81 mm | 92 mm |
| Engine Stroke Size | 83.5 mm | 86 mm |
| Engine Compression Ratio | 9.2:1 | 12.0:1 |
| Top Speed | 176 km/hour | 210 km/hour |
| Acceleration 0-100mph | 12 seconds | 7.6 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | 6-speed manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 955 kg | 2130 kg |
| Vehicle Length | 4470 mm | 4804 mm |
| Vehicle Width | 1710 mm | 2141 mm |
| Vehicle Height | 1420 mm | 1796 mm |
| Wheelbase Size | 2670 mm | 2915 mm |
