1987 Ford Sierra vs. 1966 Ford Zephyr
To start off, 1987 Ford Sierra is newer by 21 year(s). Which means there will be less support and parts availability for 1966 Ford Zephyr. In addition, the cost of maintenance, including insurance, on 1966 Ford Zephyr would be higher. At 2,553 cc (6 cylinders), 1966 Ford Zephyr is equipped with a bigger engine. In terms of performance, 1987 Ford Sierra (204 HP @ 6250 RPM) has 91 more horse power than 1966 Ford Zephyr. (113 HP @ 4750 RPM). In normal driving conditions, 1987 Ford Sierra should accelerate faster than 1966 Ford Zephyr. With that said, vehicle weight also plays an important factor in acceleration. 1966 Ford Zephyr weights approximately 50 kg more than 1987 Ford Sierra.
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, 1987 Ford Sierra (277 Nm @ 4500 RPM) has 79 more torque (in Nm) than 1966 Ford Zephyr. (198 Nm @ 3000 RPM). This means 1987 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1966 Ford Zephyr.
Compare all specifications:
| 1987 Ford Sierra | 1966 Ford Zephyr | |
| Make | Ford | Ford |
| Model | Sierra | Zephyr |
| Year Released | 1987 | 1966 |
| Engine Position | Front | Front |
| Engine Size | 1993 cc | 2553 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 204 HP | 113 HP |
| Engine RPM | 6250 RPM | 4750 RPM |
| Torque | 277 Nm | 198 Nm |
| Torque RPM | 4500 RPM | 3000 RPM |
| Engine Bore Size | 90.8 mm | 93.7 mm |
| Engine Stroke Size | 77 mm | 60.4 mm |
| Top Speed | 240 km/hour | 155 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1250 kg | 1300 kg |
| Vehicle Length | 4470 mm | 4710 mm |
| Vehicle Width | 1710 mm | 1820 mm |
| Vehicle Height | 1380 mm | 1490 mm |
| Wheelbase Size | 2500 mm | 2940 mm |
