1984 Ford Sierra vs. 2005 Jaguar XJ
To start off, 2005 Jaguar XJ is newer by 21 year(s). Which means there will be less support and parts availability for 1984 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1984 Ford Sierra would be higher. At 4,195 cc (8 cylinders), 2005 Jaguar XJ is equipped with a bigger engine. In terms of performance, 2005 Jaguar XJ (390 HP @ 6000 RPM) has 315 more horse power than 1984 Ford Sierra. (75 HP @ 4800 RPM) In normal driving conditions, 2005 Jaguar XJ should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Jaguar XJ weights approximately 695 kg more than 1984 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2005 Jaguar XJ (525 Nm) has 402 more torque (in Nm) than 1984 Ford Sierra. (123 Nm). This means 2005 Jaguar XJ will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra. 2005 Jaguar XJ has automatic transmission and 1984 Ford Sierra has manual transmission. 1984 Ford Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Jaguar XJ will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1984 Ford Sierra | 2005 Jaguar XJ | |
| Make | Ford | Jaguar |
| Model | Sierra | XJ |
| Year Released | 1984 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1593 cc | 4195 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 75 HP | 390 HP |
| Engine RPM | 4800 RPM | 6000 RPM |
| Torque | 123 Nm | 525 Nm |
| Engine Bore Size | 87.7 mm | 86.1 mm |
| Engine Stroke Size | 66 mm | 90 mm |
| Engine Compression Ratio | 9.5:1 | 9.1:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1040 kg | 1735 kg |
| Vehicle Length | 4430 mm | 5100 mm |
| Vehicle Width | 1730 mm | 1950 mm |
| Vehicle Height | 1370 mm | 1450 mm |
| Wheelbase Size | 2610 mm | 2920 mm |
| Fuel Tank Capacity | 60 L | 84 L |
