2003 Alfa Romeo 156 vs. 2006 Infiniti FX
To start off, 2006 Infiniti FX is newer by 3 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 4,490 cc (8 cylinders), 2006 Infiniti FX is equipped with a bigger engine. In terms of performance, 2006 Infiniti FX (320 HP @ 6400 RPM) has 202 more horse power than 2003 Alfa Romeo 156. (118 HP @ 6500 RPM) In normal driving conditions, 2006 Infiniti FX should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2006 Infiniti FX weights approximately 690 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 2006 Infiniti FX is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alfa Romeo 156. In wet, icy, snow, or gravel driving conditions, 2006 Infiniti FX 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, 2006 Infiniti FX (454 Nm @ 4000 RPM) has 314 more torque (in Nm) than 2003 Alfa Romeo 156. (140 Nm @ 4500 RPM). This means 2006 Infiniti FX will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 156.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2006 Infiniti FX | |
| Make | Alfa Romeo | Infiniti |
| Model | 156 | FX |
| Year Released | 2003 | 2006 |
| Body Type | Station Wagon | Crossover |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 4490 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 118 HP | 320 HP |
| Engine RPM | 6500 RPM | 6400 RPM |
| Torque | 140 Nm | 454 Nm |
| Torque RPM | 4500 RPM | 4000 RPM |
| Engine Bore Size | 82.1 mm | 93 mm |
| Engine Stroke Size | 75.6 mm | 82.7 mm |
| Engine Compression Ratio | 10.3:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1265 kg | 1955 kg |
| Vehicle Length | 4450 mm | 4810 mm |
| Vehicle Width | 1750 mm | 1930 mm |
| Vehicle Height | 1430 mm | 1660 mm |
| Wheelbase Size | 2600 mm | 2860 mm |
| Fuel Consumption | 6.5 L/100km | 13.1 L/100km |
| Fuel Consumption Overall | 5.9 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 63 L | 90 L |
