1971 Fiat 125 vs. 1984 Ford Sierra
To start off, 1984 Ford Sierra is newer by 13 year(s). Which means there will be less support and parts availability for 1971 Fiat 125. In addition, the cost of maintenance, including insurance, on 1971 Fiat 125 would be higher. Both 1971 Fiat 125 and 1984 Ford Sierra are equipped with a 1,608 cc engine. In terms of performance, 1971 Fiat 125 (90 HP @ 5600 RPM) has 15 more horse power than 1984 Ford Sierra. (75 HP @ 5300 RPM). In normal driving conditions, 1971 Fiat 125 should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1984 Ford Sierra weights approximately 80 kg more than 1971 Fiat 125.
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, 1971 Fiat 125 (131 Nm @ 4000 RPM) has 12 more torque (in Nm) than 1984 Ford Sierra. (119 Nm @ 2900 RPM). This means 1971 Fiat 125 will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra.
Compare all specifications:
| 1971 Fiat 125 | 1984 Ford Sierra | |
| Make | Fiat | Ford |
| Model | 125 | Sierra |
| Year Released | 1971 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 1608 cc | 1608 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 90 HP | 75 HP |
| Engine RPM | 5600 RPM | 5300 RPM |
| Torque | 131 Nm | 119 Nm |
| Torque RPM | 4000 RPM | 2900 RPM |
| Engine Bore Size | 80.1 mm | 87.8 mm |
| Engine Stroke Size | 80 mm | 66 mm |
| Engine Compression Ratio | 8.8:1 | 9.2:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 960 kg | 1040 kg |
| Vehicle Length | 4230 mm | 4500 mm |
| Vehicle Width | 1610 mm | 1720 mm |
| Vehicle Height | 1450 mm | 1450 mm |
| Wheelbase Size | 2430 mm | 2610 mm |
| Fuel Tank Capacity | 45 L | 60 L |
