2006 Alfa Romeo 159 vs. 2005 Infiniti QX4
To start off, 2006 Alfa Romeo 159 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Infiniti QX4. In addition, the cost of maintenance, including insurance, on 2005 Infiniti QX4 would be higher. At 3,496 cc (6 cylinders), 2005 Infiniti QX4 is equipped with a bigger engine. In terms of performance, 2005 Infiniti QX4 (238 HP @ 6000 RPM) has 80 more horse power than 2006 Alfa Romeo 159. (158 HP @ 6500 RPM) In normal driving conditions, 2005 Infiniti QX4 should accelerate faster than 2006 Alfa Romeo 159. With that said, vehicle weight also plays an important factor in acceleration. 2005 Infiniti QX4 weights approximately 405 kg more than 2006 Alfa Romeo 159. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Infiniti QX4 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Alfa Romeo 159. In wet, icy, snow, or gravel driving conditions, 2005 Infiniti QX4 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, 2005 Infiniti QX4 (359 Nm @ 3200 RPM) has 169 more torque (in Nm) than 2006 Alfa Romeo 159. (190 Nm @ 4500 RPM). This means 2005 Infiniti QX4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Alfa Romeo 159. 2005 Infiniti QX4 has automatic transmission and 2006 Alfa Romeo 159 has manual transmission. 2006 Alfa Romeo 159 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Infiniti QX4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Alfa Romeo 159 | 2005 Infiniti QX4 | |
| Make | Alfa Romeo | Infiniti |
| Model | 159 | QX4 |
| Year Released | 2006 | 2005 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 1908 cc | 3496 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 158 HP | 238 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 190 Nm | 359 Nm |
| Torque RPM | 4500 RPM | 3200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1555 kg | 1960 kg |
| Vehicle Length | 4670 mm | 4660 mm |
| Vehicle Width | 1830 mm | 1850 mm |
| Vehicle Height | 1420 mm | 1800 mm |
| Wheelbase Size | 2710 mm | 2710 mm |
