1976 Mercury Cougar vs. 1978 Renault Siete
To start off, 1978 Renault Siete is newer by 2 year(s). Which means there will be less support and parts availability for 1976 Mercury Cougar. In addition, the cost of maintenance, including insurance, on 1976 Mercury Cougar would be higher. At 5,766 cc (8 cylinders), 1976 Mercury Cougar is equipped with a bigger engine. In terms of performance, 1976 Mercury Cougar (152 HP @ 3600 RPM) has 103 more horse power than 1978 Renault Siete. (49 HP @ 5000 RPM). In normal driving conditions, 1976 Mercury Cougar should accelerate faster than 1978 Renault Siete. With that said, vehicle weight also plays an important factor in acceleration. 1976 Mercury Cougar weights approximately 1214 kg more than 1978 Renault Siete. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1976 Mercury Cougar 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 1976 Mercury Cougar. However, in wet, icy, snow, or gravel driving conditions, 1978 Renault Siete, 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, 1976 Mercury Cougar (377 Nm @ 1800 RPM) has 305 more torque (in Nm) than 1978 Renault Siete. (72 Nm @ 3000 RPM). This means 1976 Mercury Cougar will have an easier job in driving up hills or pulling heavy equipment than 1978 Renault Siete.
Compare all specifications:
| 1976 Mercury Cougar | 1978 Renault Siete | |
| Make | Mercury | Renault |
| Model | Cougar | Siete |
| Year Released | 1976 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 5766 cc | 1037 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 152 HP | 49 HP |
| Engine RPM | 3600 RPM | 5000 RPM |
| Torque | 377 Nm | 72 Nm |
| Torque RPM | 1800 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Vehicle Weight | 2030 kg | 816 kg |
| Vehicle Length | 5480 mm | 3900 mm |
| Vehicle Width | 2010 mm | 1530 mm |
| Vehicle Height | 1340 mm | 1430 mm |
| Wheelbase Size | 2910 mm | 2540 mm |
