1991 Ford Sierra vs. 2005 Rover 75
To start off, 2005 Rover 75 is newer by 14 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 1,796 cc (4 cylinders), 2005 Rover 75 is equipped with a bigger engine. In terms of performance, 2005 Rover 75 (118 HP @ 5500 RPM) has 43 more horse power than 1991 Ford Sierra. (75 HP @ 4500 RPM) In normal driving conditions, 2005 Rover 75 should accelerate faster than 1991 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Rover 75 weights approximately 225 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, 2005 Rover 75 (160 Nm @ 4000 RPM) has 8 more torque (in Nm) than 1991 Ford Sierra. (152 Nm @ 2200 RPM). This means 2005 Rover 75 will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Sierra.
Compare all specifications:
| 1991 Ford Sierra | 2005 Rover 75 | |
| Make | Ford | Rover |
| Model | Sierra | 75 |
| Year Released | 1991 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1751 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 118 HP |
| Engine RPM | 4500 RPM | 5500 RPM |
| Torque | 152 Nm | 160 Nm |
| Torque RPM | 2200 RPM | 4000 RPM |
| Engine Bore Size | 82.5 mm | 80 mm |
| Engine Stroke Size | 82 mm | 89.3 mm |
| Engine Compression Ratio | 21.5:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1145 kg | 1370 kg |
| Vehicle Length | 4430 mm | 4750 mm |
| Vehicle Width | 1700 mm | 1780 mm |
| Vehicle Height | 1370 mm | 1430 mm |
| Wheelbase Size | 2620 mm | 2750 mm |
| Fuel Tank Capacity | 60 L | 65 L |
