1985 Ford Sierra vs. 2009 Opel Astra
To start off, 2009 Opel Astra is newer by 24 year(s). Which means there will be less support and parts availability for 1985 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1985 Ford Sierra would be higher. At 2,790 cc (6 cylinders), 1985 Ford Sierra is equipped with a bigger engine. In terms of performance, 2009 Opel Astra (197 HP @ 5400 RPM) has 49 more horse power than 1985 Ford Sierra. (148 HP @ 5700 RPM) In normal driving conditions, 2009 Opel Astra should accelerate faster than 1985 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2009 Opel Astra weights approximately 420 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, 2009 Opel Astra (262 Nm @ 1950 RPM) has 42 more torque (in Nm) than 1985 Ford Sierra. (220 Nm @ 3800 RPM). This means 2009 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 1985 Ford Sierra.
Compare all specifications:
| 1985 Ford Sierra | 2009 Opel Astra | |
| Make | Ford | Opel |
| Model | Sierra | Astra |
| Year Released | 1985 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2790 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 197 HP |
| Engine RPM | 5700 RPM | 5400 RPM |
| Torque | 220 Nm | 262 Nm |
| Torque RPM | 3800 RPM | 1950 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1205 kg | 1625 kg |
| Vehicle Length | 4400 mm | 4300 mm |
| Vehicle Width | 1680 mm | 1760 mm |
| Vehicle Height | 1370 mm | 1440 mm |
| Wheelbase Size | 2620 mm | 2620 mm |
