1970 Mercury Comet vs. 1987 Renault 21
To start off, 1987 Renault 21 is newer by 17 year(s). Which means there will be less support and parts availability for 1970 Mercury Comet. In addition, the cost of maintenance, including insurance, on 1970 Mercury Comet would be higher. At 2,782 cc (6 cylinders), 1970 Mercury Comet is equipped with a bigger engine. In terms of performance, 1987 Renault 21 (175 HP @ 5200 RPM) has 94 more horse power than 1970 Mercury Comet. (81 HP @ 4400 RPM) In normal driving conditions, 1987 Renault 21 should accelerate faster than 1970 Mercury Comet. With that said, vehicle weight also plays an important factor in acceleration. 1970 Mercury Comet weights approximately 30 kg more than 1987 Renault 21.
Because 1970 Mercury Comet 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 1970 Mercury Comet. However, in wet, icy, snow, or gravel driving conditions, 1987 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, 1987 Renault 21 (270 Nm @ 3000 RPM) has 94 more torque (in Nm) than 1970 Mercury Comet. (176 Nm @ 1800 RPM). This means 1987 Renault 21 will have an easier job in driving up hills or pulling heavy equipment than 1970 Mercury Comet.
Compare all specifications:
| 1970 Mercury Comet | 1987 Renault 21 | |
| Make | Mercury | Renault |
| Model | Comet | 21 |
| Year Released | 1970 | 1987 |
| Engine Position | Front | Front |
| Engine Size | 2782 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 81 HP | 175 HP |
| Engine RPM | 4400 RPM | 5200 RPM |
| Torque | 176 Nm | 270 Nm |
| Torque RPM | 1800 RPM | 3000 RPM |
| Drive Type | Rear | Front |
| Vehicle Weight | 1220 kg | 1190 kg |
| Vehicle Length | 4620 mm | 4650 mm |
| Vehicle Width | 1800 mm | 1720 mm |
| Vehicle Height | 1350 mm | 1380 mm |
| Wheelbase Size | 2630 mm | 2610 mm |
