1984 Ford Sierra vs. 1970 Ford Zephyr
To start off, 1984 Ford Sierra is newer by 14 year(s). Which means there will be less support and parts availability for 1970 Ford Zephyr. In addition, the cost of maintenance, including insurance, on 1970 Ford Zephyr would be higher. At 1,996 cc (4 cylinders), 1970 Ford Zephyr is equipped with a bigger engine. In terms of performance, 1970 Ford Zephyr (81 HP @ 4750 RPM) has 22 more horse power than 1984 Ford Sierra. (59 HP @ 5700 RPM) In normal driving conditions, 1970 Ford Zephyr should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1970 Ford Zephyr weights approximately 280 kg more than 1984 Ford Sierra. 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, 1970 Ford Zephyr (154 Nm @ 2750 RPM) has 56 more torque (in Nm) than 1984 Ford Sierra. (98 Nm @ 3100 RPM). This means 1970 Ford Zephyr will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra.
Compare all specifications:
| 1984 Ford Sierra | 1970 Ford Zephyr | |
| Make | Ford | Ford |
| Model | Sierra | Zephyr |
| Year Released | 1984 | 1970 |
| Engine Position | Front | Front |
| Engine Size | 1294 cc | 1996 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 59 HP | 81 HP |
| Engine RPM | 5700 RPM | 4750 RPM |
| Torque | 98 Nm | 154 Nm |
| Torque RPM | 3100 RPM | 2750 RPM |
| Engine Bore Size | 79.1 mm | 93.7 mm |
| Engine Stroke Size | 66 mm | 72.4 mm |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 970 kg | 1250 kg |
| Vehicle Length | 4400 mm | 4710 mm |
| Vehicle Width | 1710 mm | 1820 mm |
| Vehicle Height | 1420 mm | 1490 mm |
| Wheelbase Size | 2610 mm | 2930 mm |
