1973 Fiat 500 vs. 1986 Ford Sierra
To start off, 1986 Ford Sierra is newer by 13 year(s). Which means there will be less support and parts availability for 1973 Fiat 500. In addition, the cost of maintenance, including insurance, on 1973 Fiat 500 would be higher. At 2,792 cc (6 cylinders), 1986 Ford Sierra is equipped with a bigger engine. In terms of performance, 1986 Ford Sierra (160 HP @ 5700 RPM) has 142 more horse power than 1973 Fiat 500. (18 HP @ 4600 RPM) In normal driving conditions, 1986 Ford Sierra should accelerate faster than 1973 Fiat 500. With that said, vehicle weight also plays an important factor in acceleration. 1986 Ford Sierra weights approximately 756 kg more than 1973 Fiat 500. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1986 Ford Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1973 Fiat 500. In wet, icy, snow, or gravel driving conditions, 1986 Ford Sierra will offer significantly more control. 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, 1986 Ford Sierra (216 Nm @ 4300 RPM) has 189 more torque (in Nm) than 1973 Fiat 500. (27 Nm @ 3200 RPM). This means 1986 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1973 Fiat 500.
Compare all specifications:
| 1973 Fiat 500 | 1986 Ford Sierra | |
| Make | Fiat | Ford |
| Model | 500 | Sierra |
| Year Released | 1973 | 1986 |
| Engine Position | Rear | Front |
| Engine Size | 499 cc | 2792 cc |
| Engine Cylinders | 2 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 18 HP | 160 HP |
| Engine RPM | 4600 RPM | 5700 RPM |
| Torque | 27 Nm | 216 Nm |
| Torque RPM | 3200 RPM | 4300 RPM |
| Engine Bore Size | 67.4 mm | 93 mm |
| Engine Stroke Size | 70 mm | 68.5 mm |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 510 kg | 1266 kg |
| Vehicle Length | 2980 mm | 4430 mm |
| Vehicle Width | 1330 mm | 1730 mm |
| Wheelbase Size | 1850 mm | 2610 mm |
| Fuel Tank Capacity | 22 L | 116 L |
