2008 Jaguar XJ vs. 2009 Fiat Siena
To start off, 2009 Fiat Siena is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Jaguar XJ. In addition, the cost of maintenance, including insurance, on 2008 Jaguar XJ would be higher. At 4,200 cc (8 cylinders), 2008 Jaguar XJ is equipped with a bigger engine. In terms of performance, 2008 Jaguar XJ (300 HP @ 6000 RPM) has 194 more horse power than 2009 Fiat Siena. (106 HP @ 5500 RPM). In normal driving conditions, 2008 Jaguar XJ should accelerate faster than 2009 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2008 Jaguar XJ weights approximately 589 kg more than 2009 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 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 2008 Jaguar XJ. However, in wet, icy, snow, or gravel driving conditions, 2009 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, 2008 Jaguar XJ (420 Nm @ 4100 RPM) has 280 more torque (in Nm) than 2009 Fiat Siena. (140 Nm @ 4000 RPM). This means 2008 Jaguar XJ will have an easier job in driving up hills or pulling heavy equipment than 2009 Fiat Siena. 2008 Jaguar XJ has automatic transmission and 2009 Fiat Siena has manual transmission. 2009 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Jaguar XJ will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Jaguar XJ | 2009 Fiat Siena | |
| Make | Jaguar | Fiat |
| Model | XJ | Siena |
| Year Released | 2008 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4200 cc | 1581 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 300 HP | 106 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 420 Nm | 140 Nm |
| Torque RPM | 4100 RPM | 4000 RPM |
| Engine Compression Ratio | 11.0:1 | 10.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Acceleration 0-100mph | 6.6 seconds | 10.5 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1684 kg | 1095 kg |
| Vehicle Length | 5100 mm | 3550 mm |
| Vehicle Width | 2110 mm | 1640 mm |
| Vehicle Height | 1450 mm | 1490 mm |
| Wheelbase Size | 3040 mm | 2370 mm |
| Fuel Consumption Overall | 10.5 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 85 L | 47 L |
