1985 Ford Sierra vs. 1999 Opel Astra
To start off, 1999 Opel Astra is newer by 14 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, 1985 Ford Sierra (148 HP @ 5700 RPM) has 60 more horse power than 1999 Opel Astra. (88 HP @ 6000 RPM). In normal driving conditions, 1985 Ford Sierra should accelerate faster than 1999 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 1985 Ford Sierra weights approximately 15 kg more than 1999 Opel Astra. 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 95 more torque (in Nm) than 1999 Opel Astra. (125 Nm @ 4000 RPM). This means 1985 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Astra.
Compare all specifications:
| 1985 Ford Sierra | 1999 Opel Astra | |
| Make | Ford | Opel |
| Model | Sierra | Astra |
| Year Released | 1985 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 2790 cc | 1389 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 88 HP |
| Engine RPM | 5700 RPM | 6000 RPM |
| Torque | 220 Nm | 125 Nm |
| Torque RPM | 3800 RPM | 4000 RPM |
| Engine Bore Size | 93 mm | 77.6 mm |
| Engine Stroke Size | 68.5 mm | 73.4 mm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1205 kg | 1190 kg |
| Vehicle Length | 4400 mm | 4300 mm |
| Vehicle Width | 1680 mm | 1720 mm |
| Vehicle Height | 1370 mm | 1470 mm |
| Wheelbase Size | 2620 mm | 2620 mm |
