1973 Innocenti J4 vs. 1978 Mercury Cougar
To start off, 1978 Mercury Cougar is newer by 5 year(s). Which means there will be less support and parts availability for 1973 Innocenti J4. In addition, the cost of maintenance, including insurance, on 1973 Innocenti J4 would be higher. At 4,941 cc (8 cylinders), 1978 Mercury Cougar is equipped with a bigger engine. In terms of performance, 1978 Mercury Cougar (133 HP @ 3400 RPM) has 77 more horse power than 1973 Innocenti J4. (56 HP @ 5500 RPM) In normal driving conditions, 1978 Mercury Cougar should accelerate faster than 1973 Innocenti J4. With that said, vehicle weight also plays an important factor in acceleration. 1978 Mercury Cougar weights approximately 975 kg more than 1973 Innocenti J4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1978 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 1978 Mercury Cougar. However, in wet, icy, snow, or gravel driving conditions, 1973 Innocenti J4, 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, 1978 Mercury Cougar (336 Nm @ 1600 RPM) has 253 more torque (in Nm) than 1973 Innocenti J4. (83 Nm @ 2500 RPM). This means 1978 Mercury Cougar will have an easier job in driving up hills or pulling heavy equipment than 1973 Innocenti J4.
Compare all specifications:
| 1973 Innocenti J4 | 1978 Mercury Cougar | |
| Make | Innocenti | Mercury |
| Model | J4 | Cougar |
| Year Released | 1973 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 1097 cc | 4941 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 56 HP | 133 HP |
| Engine RPM | 5500 RPM | 3400 RPM |
| Torque | 83 Nm | 336 Nm |
| Torque RPM | 2500 RPM | 1600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Vehicle Weight | 880 kg | 1855 kg |
| Vehicle Length | 3720 mm | 5480 mm |
| Vehicle Width | 1540 mm | 2010 mm |
| Vehicle Height | 1380 mm | 1340 mm |
| Wheelbase Size | 2380 mm | 2910 mm |
