1991 Ford Sierra vs. 1964 Innocenti J4
To start off, 1991 Ford Sierra is newer by 27 year(s). Which means there will be less support and parts availability for 1964 Innocenti J4. In addition, the cost of maintenance, including insurance, on 1964 Innocenti J4 would be higher. At 1,751 cc (4 cylinders), 1991 Ford Sierra is equipped with a bigger engine. In terms of performance, 1991 Ford Sierra (75 HP @ 4500 RPM) has 18 more horse power than 1964 Innocenti J4. (57 HP @ 5500 RPM). In normal driving conditions, 1991 Ford Sierra should accelerate faster than 1964 Innocenti J4. With that said, vehicle weight also plays an important factor in acceleration. 1991 Ford Sierra weights approximately 295 kg more than 1964 Innocenti J4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1991 Ford Sierra (152 Nm @ 2200 RPM) has 70 more torque (in Nm) than 1964 Innocenti J4. (82 Nm @ 2000 RPM). This means 1991 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1964 Innocenti J4.
Compare all specifications:
| 1991 Ford Sierra | 1964 Innocenti J4 | |
| Make | Ford | Innocenti |
| Model | Sierra | J4 |
| Year Released | 1991 | 1964 |
| Engine Position | Front | Front |
| Engine Size | 1751 cc | 1098 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 57 HP |
| Engine RPM | 4500 RPM | 5500 RPM |
| Torque | 152 Nm | 82 Nm |
| Torque RPM | 2200 RPM | 2000 RPM |
| Engine Bore Size | 82.5 mm | 64.6 mm |
| Engine Stroke Size | 82 mm | 83.7 mm |
| Engine Compression Ratio | 21.5:1 | 9.0:1 |
| Fuel Type | Diesel | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1145 kg | 850 kg |
| Vehicle Length | 4430 mm | 3720 mm |
| Vehicle Width | 1700 mm | 1540 mm |
| Vehicle Height | 1370 mm | 1380 mm |
| Wheelbase Size | 2620 mm | 2380 mm |
