1985 Ford Sierra vs. 1976 Holden Sunbird
To start off, 1985 Ford Sierra is newer by 9 year(s). Which means there will be less support and parts availability for 1976 Holden Sunbird. In addition, the cost of maintenance, including insurance, on 1976 Holden Sunbird would be higher. At 4,143 cc (8 cylinders), 1976 Holden Sunbird is equipped with a bigger engine. In terms of performance, 1976 Holden Sunbird (173 HP @ 4800 RPM) has 25 more horse power than 1985 Ford Sierra. (148 HP @ 5700 RPM) In normal driving conditions, 1976 Holden Sunbird should accelerate faster than 1985 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1976 Holden Sunbird weights approximately 7 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, 1976 Holden Sunbird (325 Nm @ 3400 RPM) has 105 more torque (in Nm) than 1985 Ford Sierra. (220 Nm @ 3800 RPM). This means 1976 Holden Sunbird will have an easier job in driving up hills or pulling heavy equipment than 1985 Ford Sierra.
Compare all specifications:
| 1985 Ford Sierra | 1976 Holden Sunbird | |
| Make | Ford | Holden |
| Model | Sierra | Sunbird |
| Year Released | 1985 | 1976 |
| Engine Position | Front | Front |
| Engine Size | 2790 cc | 4143 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 173 HP |
| Engine RPM | 5700 RPM | 4800 RPM |
| Torque | 220 Nm | 325 Nm |
| Torque RPM | 3800 RPM | 3400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1205 kg | 1212 kg |
| Vehicle Length | 4400 mm | 4500 mm |
| Vehicle Width | 1680 mm | 1710 mm |
| Vehicle Height | 1370 mm | 1340 mm |
| Wheelbase Size | 2620 mm | 2590 mm |
