1991 Ford Sierra vs. 2008 Jeep Commander
To start off, 2008 Jeep Commander is newer by 17 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 2,987 cc, 2008 Jeep Commander is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2008 Jeep Commander weights approximately 1265 kg more than 1991 Ford Sierra.
Let's talk about torque, 2008 Jeep Commander (510 Nm @ 1600 RPM) has 358 more torque (in Nm) than 1991 Ford Sierra. (152 Nm @ 2200 RPM). This means 2008 Jeep Commander will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Sierra.
Compare all specifications:
| 1991 Ford Sierra | 2008 Jeep Commander | |
| Make | Ford | Jeep |
| Model | Sierra | Commander |
| Year Released | 1991 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 1751 cc | 2987 cc |
| Horse Power | 75 HP | 0 HP |
| Torque | 152 Nm | 510 Nm |
| Torque RPM | 2200 RPM | 1600 RPM |
| Engine Bore Size | 82.5 mm | 83 mm |
| Engine Stroke Size | 82 mm | 92 mm |
| Engine Compression Ratio | 21.5:1 | 18.0:1 |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1145 kg | 2410 kg |
| Vehicle Length | 4430 mm | 4790 mm |
| Vehicle Width | 1700 mm | 1830 mm |
| Vehicle Height | 1370 mm | 2270 mm |
| Wheelbase Size | 2620 mm | 2790 mm |
