1987 Ford Sierra vs. 1981 Renault 9
To start off, 1987 Ford Sierra is newer by 6 year(s). Which means there will be less support and parts availability for 1981 Renault 9. In addition, the cost of maintenance, including insurance, on 1981 Renault 9 would be higher. At 1,993 cc (4 cylinders), 1987 Ford Sierra is equipped with a bigger engine. In terms of performance, 1987 Ford Sierra (104 HP @ 5200 RPM) has 19 more horse power than 1981 Renault 9. (85 HP @ 5000 RPM). In normal driving conditions, 1987 Ford Sierra should accelerate faster than 1981 Renault 9. With that said, vehicle weight also plays an important factor in acceleration. 1987 Ford Sierra weights approximately 239 kg more than 1981 Renault 9. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1987 Ford Sierra (160 Nm @ 4000 RPM) has 21 more torque (in Nm) than 1981 Renault 9. (139 Nm @ 3250 RPM). This means 1987 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1981 Renault 9.
Compare all specifications:
| 1987 Ford Sierra | 1981 Renault 9 | |
| Make | Ford | Renault |
| Model | Sierra | 9 |
| Year Released | 1987 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 1993 cc | 1721 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 104 HP | 85 HP |
| Engine RPM | 5200 RPM | 5000 RPM |
| Torque | 160 Nm | 139 Nm |
| Torque RPM | 4000 RPM | 3250 RPM |
| Engine Bore Size | 90.9 mm | 81 mm |
| Engine Stroke Size | 77 mm | 83.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1145 kg | 906 kg |
| Vehicle Length | 4430 mm | 4070 mm |
| Vehicle Width | 1700 mm | 1660 mm |
| Vehicle Height | 1370 mm | 1410 mm |
| Wheelbase Size | 2620 mm | 2490 mm |
