2009 Mercury Mariner vs. 1990 Renault 21
To start off, 2009 Mercury Mariner is newer by 19 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 2,501 cc (4 cylinders), 2009 Mercury Mariner is equipped with a bigger engine. In terms of performance, 2009 Mercury Mariner (170 HP @ 6000 RPM) has 95 more horse power than 1990 Renault 21. (75 HP @ 5000 RPM). In normal driving conditions, 2009 Mercury Mariner should accelerate faster than 1990 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercury Mariner weights approximately 905 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.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear 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, 2009 Mercury Mariner (171 Nm @ 4500 RPM) has 42 more torque (in Nm) than 1990 Renault 21. (129 Nm @ 3250 RPM). This means 2009 Mercury Mariner will have an easier job in driving up hills or pulling heavy equipment than 1990 Renault 21.
Compare all specifications:
| 2009 Mercury Mariner | 1990 Renault 21 | |
| Make | Mercury | Renault |
| Model | Mariner | 21 |
| Year Released | 2009 | 1990 |
| Engine Position | Front | Front |
| Engine Size | 2501 cc | 1721 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 170 HP | 75 HP |
| Engine RPM | 6000 RPM | 5000 RPM |
| Torque | 171 Nm | 129 Nm |
| Torque RPM | 4500 RPM | 3250 RPM |
| Engine Compression Ratio | 9.7:1 | 9.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1925 kg | 1020 kg |
| Vehicle Length | 4460 mm | 4650 mm |
| Vehicle Width | 1810 mm | 1720 mm |
| Vehicle Height | 1730 mm | 1430 mm |
| Wheelbase Size | 2630 mm | 2820 mm |
