2005 Fiat Siena vs. 2012 Jaguar XJ
To start off, 2012 Jaguar XJ is newer by 7 year(s). Which means there will be less support and parts availability for 2005 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2005 Fiat Siena would be higher. At 5,000 cc (8 cylinders), 2012 Jaguar XJ is equipped with a bigger engine. In terms of performance, 2012 Jaguar XJ (385 HP @ 6500 RPM) has 261 more horse power than 2005 Fiat Siena. (124 HP @ 4000 RPM) In normal driving conditions, 2012 Jaguar XJ should accelerate faster than 2005 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2012 Jaguar XJ weights approximately 740 kg more than 2005 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2012 Jaguar XJ is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2012 Jaguar XJ. However, in wet, icy, snow, or gravel driving conditions, 2005 Fiat Siena, being front wheel drive (FWD), will offer much better control with better grip. 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, 2012 Jaguar XJ (515 Nm @ 3500 RPM) has 375 more torque (in Nm) than 2005 Fiat Siena. (140 Nm @ 4000 RPM). This means 2012 Jaguar XJ will have an easier job in driving up hills or pulling heavy equipment than 2005 Fiat Siena. 2012 Jaguar XJ has automatic transmission and 2005 Fiat Siena has manual transmission. 2005 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2012 Jaguar XJ will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Fiat Siena | 2012 Jaguar XJ | |
| Make | Fiat | Jaguar |
| Model | Siena | XJ |
| Year Released | 2005 | 2012 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1585 cc | 5000 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 124 HP | 385 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 140 Nm | 515 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Drive Type | Front | Rear |
| Transmission Type | Manual | 6-speed shiftable automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1095 kg | 1835 kg |
| Wheelbase Size | 2450 mm | 3032 mm |
| Fuel Tank Capacity | 47 L | 82 L |
