1989 Ford Sierra vs. 1970 Mercury Cougar
To start off, 1989 Ford Sierra is newer by 19 year(s). Which means there will be less support and parts availability for 1970 Mercury Cougar. In addition, the cost of maintenance, including insurance, on 1970 Mercury Cougar would be higher. At 5,769 cc (8 cylinders), 1970 Mercury Cougar is equipped with a bigger engine. In terms of performance, 1970 Mercury Cougar (167 HP @ 4000 RPM) has 19 more horse power than 1989 Ford Sierra. (148 HP @ 5700 RPM) In normal driving conditions, 1970 Mercury Cougar should accelerate faster than 1989 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1970 Mercury Cougar weights approximately 355 kg more than 1989 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1989 Ford Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1970 Mercury Cougar. In wet, icy, snow, or gravel driving conditions, 1989 Ford Sierra 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, 1970 Mercury Cougar (363 Nm @ 2400 RPM) has 125 more torque (in Nm) than 1989 Ford Sierra. (238 Nm @ 3000 RPM). This means 1970 Mercury Cougar will have an easier job in driving up hills or pulling heavy equipment than 1989 Ford Sierra.
Compare all specifications:
| 1989 Ford Sierra | 1970 Mercury Cougar | |
| Make | Ford | Mercury |
| Model | Sierra | Cougar |
| Year Released | 1989 | 1970 |
| Engine Position | Front | Front |
| Engine Size | 2933 cc | 5769 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 167 HP |
| Engine RPM | 5700 RPM | 4000 RPM |
| Torque | 238 Nm | 363 Nm |
| Torque RPM | 3000 RPM | 2400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1295 kg | 1650 kg |
| Vehicle Length | 4430 mm | 5840 mm |
| Vehicle Width | 1700 mm | 2000 mm |
| Vehicle Height | 1370 mm | 1340 mm |
| Wheelbase Size | 2610 mm | 2860 mm |
