1986 Renault 21 vs. 2011 Mercury Mariner
To start off, 2011 Mercury Mariner is newer by 25 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 2,500 cc (4 cylinders), 2011 Mercury Mariner is equipped with a bigger engine. In terms of performance, 2011 Mercury Mariner (171 HP) has 101 more horse power than 1986 Renault 21. (70 HP) In normal driving conditions, 2011 Mercury Mariner should accelerate faster than 1986 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2011 Mercury Mariner weights approximately 545 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.
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, 2011 Mercury Mariner (232 Nm) has 160 more torque (in Nm) than 1986 Renault 21. (72 Nm). This means 2011 Mercury Mariner will have an easier job in driving up hills or pulling heavy equipment than 1986 Renault 21. 2011 Mercury Mariner has automatic transmission and 1986 Renault 21 has manual transmission. 1986 Renault 21 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2011 Mercury Mariner will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1986 Renault 21 | 2011 Mercury Mariner | |
| Make | Renault | Mercury |
| Model | 21 | Mariner |
| Year Released | 1986 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 1397 cc | 2500 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 70 HP | 171 HP |
| Torque | 72 Nm | 232 Nm |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 970 kg | 1515 kg |
| Vehicle Length | 4470 mm | 4458 mm |
| Vehicle Width | 1710 mm | 1806 mm |
| Vehicle Height | 1420 mm | 1778 mm |
| Wheelbase Size | 2670 mm | 2619 mm |
| Fuel Tank Capacity | 66 L | 62 L |
