2004 Mercedes-Benz ML vs. 1990 Renault 21
To start off, 2004 Mercedes-Benz ML is newer by 14 year(s). Which means there will be less support and parts availability for 1990 Renault 21. In addition, the cost of maintenance, including insurance, on 1990 Renault 21 would be higher. At 2,986 cc (6 cylinders), 2004 Mercedes-Benz ML is equipped with a bigger engine. In terms of performance, 2004 Mercedes-Benz ML (187 HP @ 4200 RPM) has 112 more horse power than 1990 Renault 21. (75 HP @ 5000 RPM). In normal driving conditions, 2004 Mercedes-Benz ML should accelerate faster than 1990 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2004 Mercedes-Benz ML weights approximately 1090 kg more than 1990 Renault 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Mercedes-Benz ML is four wheel drive (4WD), it will have significant more traction and grip than 1990 Renault 21. In wet, icy, snow, or gravel driving conditions, 2004 Mercedes-Benz ML 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, 2004 Mercedes-Benz ML (440 Nm @ 1400 RPM) has 311 more torque (in Nm) than 1990 Renault 21. (129 Nm @ 3250 RPM). This means 2004 Mercedes-Benz ML will have an easier job in driving up hills or pulling heavy equipment than 1990 Renault 21. 2004 Mercedes-Benz ML has automatic transmission and 1990 Renault 21 has manual transmission. 1990 Renault 21 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Mercedes-Benz ML will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Mercedes-Benz ML | 1990 Renault 21 | |
| Make | Mercedes-Benz | Renault |
| Model | ML | 21 |
| Year Released | 2004 | 1990 |
| Engine Position | Front | Front |
| Engine Size | 2986 cc | 1721 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 187 HP | 75 HP |
| Engine RPM | 4200 RPM | 5000 RPM |
| Torque | 440 Nm | 129 Nm |
| Torque RPM | 1400 RPM | 3250 RPM |
| Engine Bore Size | 83 mm | 81 mm |
| Engine Stroke Size | 92 mm | 83.5 mm |
| Engine Compression Ratio | 18.0:1 | 9.2:1 |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 2110 kg | 1020 kg |
| Vehicle Length | 4790 mm | 4650 mm |
| Vehicle Width | 1920 mm | 1720 mm |
| Vehicle Height | 1820 mm | 1430 mm |
| Wheelbase Size | 2970 mm | 2820 mm |
