1985 Ford Sierra vs. 1971 Holden Monaro
To start off, 1985 Ford Sierra is newer by 14 year(s). Which means there will be less support and parts availability for 1971 Holden Monaro. In addition, the cost of maintenance, including insurance, on 1971 Holden Monaro would be higher. At 5,040 cc (8 cylinders), 1971 Holden Monaro is equipped with a bigger engine. In terms of performance, 1971 Holden Monaro (238 HP @ 4600 RPM) has 90 more horse power than 1985 Ford Sierra. (148 HP @ 5700 RPM) In normal driving conditions, 1971 Holden Monaro should accelerate faster than 1985 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1971 Holden Monaro weights approximately 175 kg more than 1985 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1971 Holden Monaro (427 Nm @ 3000 RPM) has 207 more torque (in Nm) than 1985 Ford Sierra. (220 Nm @ 3800 RPM). This means 1971 Holden Monaro will have an easier job in driving up hills or pulling heavy equipment than 1985 Ford Sierra.
Compare all specifications:
| 1985 Ford Sierra | 1971 Holden Monaro | |
| Make | Ford | Holden |
| Model | Sierra | Monaro |
| Year Released | 1985 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 2790 cc | 5040 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 238 HP |
| Engine RPM | 5700 RPM | 4600 RPM |
| Torque | 220 Nm | 427 Nm |
| Torque RPM | 3800 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1205 kg | 1380 kg |
| Vehicle Length | 4400 mm | 4770 mm |
| Vehicle Width | 1680 mm | 1890 mm |
| Vehicle Height | 1370 mm | 1360 mm |
| Wheelbase Size | 2620 mm | 2830 mm |
