2005 Jaguar XJ vs. 2003 Alfa Romeo 156
To start off, 2005 Jaguar XJ is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 156 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 143 more horse power than 2003 Alfa Romeo 156. (247 HP @ 6200 RPM). In normal driving conditions, 2005 Jaguar XJ should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2005 Jaguar XJ weights approximately 200 kg more than 2003 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 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 2005 Jaguar XJ. However, in wet, icy, snow, or gravel driving conditions, 2003 Alfa Romeo 156, 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, 2005 Jaguar XJ (525 Nm) has 219 more torque (in Nm) than 2003 Alfa Romeo 156. (306 Nm). This means 2005 Jaguar XJ will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 156.
Compare all specifications:
| 2005 Jaguar XJ | 2003 Alfa Romeo 156 | |
| Make | Jaguar | Alfa Romeo |
| Model | XJ | 156 |
| Year Released | 2005 | 2003 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4195 cc | 3179 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 390 HP | 247 HP |
| Engine RPM | 6000 RPM | 6200 RPM |
| Torque | 525 Nm | 306 Nm |
| Engine Compression Ratio | 9.1:1 | 10.5:1 |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1735 kg | 1535 kg |
| Vehicle Length | 5100 mm | 4450 mm |
| Vehicle Width | 1950 mm | 1750 mm |
| Vehicle Height | 1450 mm | 1400 mm |
| Wheelbase Size | 2920 mm | 2550 mm |
| Fuel Consumption Overall | 11.8 L/100km | 12.3 L/100km |
| Fuel Tank Capacity | 84 L | 63 L |
