1991 Ford Sierra vs. 2011 Subaru Impreza
To start off, 2011 Subaru Impreza is newer by 20 year(s). Which means there will be less support and parts availability for 1991 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1991 Ford Sierra would be higher. At 1,994 cc (4 cylinders), 2011 Subaru Impreza is equipped with a bigger engine. In terms of performance, 2011 Subaru Impreza (148 HP @ 6400 RPM) has 73 more horse power than 1991 Ford Sierra. (75 HP @ 4500 RPM) In normal driving conditions, 2011 Subaru Impreza should accelerate faster than 1991 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2011 Subaru Impreza weights approximately 210 kg more than 1991 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, 2011 Subaru Impreza (196 Nm @ 3200 RPM) has 44 more torque (in Nm) than 1991 Ford Sierra. (152 Nm @ 2200 RPM). This means 2011 Subaru Impreza will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Sierra.
Compare all specifications:
| 1991 Ford Sierra | 2011 Subaru Impreza | |
| Make | Ford | Subaru |
| Model | Sierra | Impreza |
| Year Released | 1991 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 1751 cc | 1994 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 75 HP | 148 HP |
| Engine RPM | 4500 RPM | 6400 RPM |
| Torque | 152 Nm | 196 Nm |
| Torque RPM | 2200 RPM | 3200 RPM |
| Engine Bore Size | 82.5 mm | 77.7 mm |
| Engine Stroke Size | 82 mm | 79 mm |
| Engine Compression Ratio | 21.5:1 | 10.1:1 |
| Fuel Type | Diesel | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1145 kg | 1355 kg |
| Vehicle Length | 4430 mm | 4415 mm |
| Vehicle Width | 1700 mm | 1740 mm |
| Vehicle Height | 1370 mm | 1476 mm |
| Wheelbase Size | 2620 mm | 2619 mm |
| Fuel Tank Capacity | 60 L | 64 L |
