2004 Jaguar XJ vs. 2003 Alfa Romeo 156
To start off, 2004 Jaguar XJ is newer by 1 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 3,179 cc (6 cylinders), 2003 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 156 (247 HP @ 6200 RPM) has 7 more horse power than 2004 Jaguar XJ. (240 HP @ 6800 RPM) In normal driving conditions, 2003 Alfa Romeo 156 should accelerate faster than 2004 Jaguar XJ. With that said, vehicle weight also plays an important factor in acceleration. 2004 Jaguar XJ weights approximately 10 kg more than 2003 Alfa Romeo 156.
Because 2004 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 2004 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, 2003 Alfa Romeo 156 (306 Nm @ 4800 RPM) has 27 more torque (in Nm) than 2004 Jaguar XJ. (279 Nm @ 4100 RPM). This means 2003 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2004 Jaguar XJ.
Compare all specifications:
| 2004 Jaguar XJ | 2003 Alfa Romeo 156 | |
| Make | Jaguar | Alfa Romeo |
| Model | XJ | 156 |
| Year Released | 2004 | 2003 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2968 cc | 3179 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 240 HP | 247 HP |
| Engine RPM | 6800 RPM | 6200 RPM |
| Torque | 279 Nm | 306 Nm |
| Torque RPM | 4100 RPM | 4800 RPM |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1545 kg | 1535 kg |
| Vehicle Length | 5100 mm | 4450 mm |
| Vehicle Width | 1870 mm | 1750 mm |
| Vehicle Height | 1450 mm | 1400 mm |
| Wheelbase Size | 3040 mm | 2550 mm |
| Fuel Tank Capacity | 85 L | 63 L |
