1991 Ford Sierra vs. 2013 Jaguar XF
To start off, 2013 Jaguar XF is newer by 22 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 2,995 cc (4 cylinders), 2013 Jaguar XF is equipped with a bigger engine. In terms of performance, 2013 Jaguar XF (335 HP @ 6500 RPM) has 260 more horse power than 1991 Ford Sierra. (75 HP @ 4500 RPM) In normal driving conditions, 2013 Jaguar XF should accelerate faster than 1991 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2013 Jaguar XF weights approximately 624 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, 2013 Jaguar XF (340 Nm @ 5000 RPM) has 188 more torque (in Nm) than 1991 Ford Sierra. (152 Nm @ 2200 RPM). This means 2013 Jaguar XF will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Sierra.
Compare all specifications:
| 1991 Ford Sierra | 2013 Jaguar XF | |
| Make | Ford | Jaguar |
| Model | Sierra | XF |
| Year Released | 1991 | 2013 |
| Engine Position | Front | Front |
| Engine Size | 1751 cc | 2995 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | V |
| Horse Power | 75 HP | 335 HP |
| Engine RPM | 4500 RPM | 6500 RPM |
| Torque | 152 Nm | 340 Nm |
| Torque RPM | 2200 RPM | 5000 RPM |
| Engine Bore Size | 82.5 mm | 84 mm |
| Engine Stroke Size | 82 mm | 89 mm |
| Engine Compression Ratio | 21.5:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline / Electric Hybrid |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1145 kg | 1769 kg |
| Vehicle Length | 4430 mm | 4961 mm |
| Vehicle Width | 1700 mm | 2053 mm |
| Vehicle Height | 1370 mm | 1460 mm |
| Wheelbase Size | 2620 mm | 2909 mm |
