1991 Ford Sierra vs. 1978 Ford Capri
To start off, 1991 Ford Sierra is newer by 13 year(s). Which means there will be less support and parts availability for 1978 Ford Capri. In addition, the cost of maintenance, including insurance, on 1978 Ford Capri would be higher. At 1,597 cc (4 cylinders), 1991 Ford Sierra is equipped with a bigger engine. In terms of performance, 1991 Ford Sierra (74 HP @ 4900 RPM) has 25 more horse power than 1978 Ford Capri. (49 HP @ 5000 RPM). In normal driving conditions, 1991 Ford Sierra should accelerate faster than 1978 Ford Capri. With that said, vehicle weight also plays an important factor in acceleration. 1991 Ford Sierra weights approximately 30 kg more than 1978 Ford Capri. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1991 Ford Sierra (123 Nm @ 2900 RPM) has 36 more torque (in Nm) than 1978 Ford Capri. (87 Nm @ 3000 RPM). This means 1991 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1978 Ford Capri.
Compare all specifications:
| 1991 Ford Sierra | 1978 Ford Capri | |
| Make | Ford | Ford |
| Model | Sierra | Capri |
| Year Released | 1991 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 1597 cc | 1298 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 74 HP | 49 HP |
| Engine RPM | 4900 RPM | 5000 RPM |
| Torque | 123 Nm | 87 Nm |
| Torque RPM | 2900 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1015 kg | 985 kg |
| Vehicle Length | 4430 mm | 4380 mm |
| Vehicle Width | 1700 mm | 1710 mm |
| Vehicle Height | 1370 mm | 1370 mm |
| Wheelbase Size | 2620 mm | 2570 mm |
