2004 Alfa Romeo 156 vs. 2007 Jaguar XJ
To start off, 2007 Jaguar XJ is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2004 Alfa Romeo 156 would be higher. At 4,196 cc (8 cylinders), 2007 Jaguar XJ is equipped with a bigger engine. In terms of performance, 2007 Jaguar XJ (300 HP @ 6000 RPM) has 152 more horse power than 2004 Alfa Romeo 156. (148 HP @ 4000 RPM) In normal driving conditions, 2007 Jaguar XJ should accelerate faster than 2004 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2007 Jaguar XJ weights approximately 74 kg more than 2004 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Alfa Romeo 156 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Jaguar XJ. In wet, icy, snow, or gravel driving conditions, 2004 Alfa Romeo 156 will offer significantly more control. 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, 2007 Jaguar XJ (420 Nm @ 4100 RPM) has 120 more torque (in Nm) than 2004 Alfa Romeo 156. (300 Nm @ 2000 RPM). This means 2007 Jaguar XJ will have an easier job in driving up hills or pulling heavy equipment than 2004 Alfa Romeo 156. 2007 Jaguar XJ has automatic transmission and 2004 Alfa Romeo 156 has manual transmission. 2004 Alfa Romeo 156 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Jaguar XJ will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Alfa Romeo 156 | 2007 Jaguar XJ | |
| Make | Alfa Romeo | Jaguar |
| Model | 156 | XJ |
| Year Released | 2004 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 4196 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 300 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 300 Nm | 420 Nm |
| Torque RPM | 2000 RPM | 4100 RPM |
| Engine Bore Size | 82 mm | 86 mm |
| Engine Stroke Size | 90.4 mm | 90.3 mm |
| Engine Compression Ratio | 18.5:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1585 kg | 1659 kg |
| Vehicle Length | 4450 mm | 5220 mm |
| Vehicle Width | 1770 mm | 1950 mm |
| Vehicle Height | 1480 mm | 1460 mm |
| Wheelbase Size | 2600 mm | 3170 mm |
| Fuel Consumption Overall | 7.1 L/100km | 11.4 L/100km |
| Fuel Tank Capacity | 50 L | 85 L |
