1975 Alfa Romeo Alfasud vs. 1985 Ford Sierra
To start off, 1985 Ford Sierra is newer by 10 year(s). Which means there will be less support and parts availability for 1975 Alfa Romeo Alfasud. In addition, the cost of maintenance, including insurance, on 1975 Alfa Romeo Alfasud would be higher. At 2,790 cc (6 cylinders), 1985 Ford Sierra is equipped with a bigger engine. In terms of performance, 1985 Ford Sierra (148 HP @ 5700 RPM) has 86 more horse power than 1975 Alfa Romeo Alfasud. (62 HP @ 6000 RPM) In normal driving conditions, 1985 Ford Sierra should accelerate faster than 1975 Alfa Romeo Alfasud. With that said, vehicle weight also plays an important factor in acceleration. 1985 Ford Sierra weights approximately 311 kg more than 1975 Alfa Romeo Alfasud. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1985 Ford Sierra (220 Nm @ 3800 RPM) has 132 more torque (in Nm) than 1975 Alfa Romeo Alfasud. (88 Nm @ 3200 RPM). This means 1985 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1975 Alfa Romeo Alfasud.
Compare all specifications:
| 1975 Alfa Romeo Alfasud | 1985 Ford Sierra | |
| Make | Alfa Romeo | Ford |
| Model | Alfasud | Sierra |
| Year Released | 1975 | 1985 |
| Engine Position | Front | Front |
| Engine Size | 1186 cc | 2790 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 62 HP | 148 HP |
| Engine RPM | 6000 RPM | 5700 RPM |
| Torque | 88 Nm | 220 Nm |
| Torque RPM | 3200 RPM | 3800 RPM |
| Engine Bore Size | 80 mm | 93 mm |
| Engine Stroke Size | 59 mm | 68.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 894 kg | 1205 kg |
| Vehicle Length | 3940 mm | 4400 mm |
| Vehicle Width | 1590 mm | 1680 mm |
| Vehicle Height | 1360 mm | 1370 mm |
| Wheelbase Size | 2520 mm | 2620 mm |
