2003 Alfa Romeo 156 vs. 2005 Infiniti QX4
To start off, 2005 Infiniti QX4 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 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 100 more horse power than 2003 Alfa Romeo 156. (138 HP @ 6500 RPM) In normal driving conditions, 2005 Infiniti QX4 should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2005 Infiniti QX4 weights approximately 645 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 Infiniti QX4 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, 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 196 more torque (in Nm) than 2003 Alfa Romeo 156. (163 Nm @ 3900 RPM). This means 2005 Infiniti QX4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 156. 2005 Infiniti QX4 has automatic transmission and 2003 Alfa Romeo 156 has manual transmission. 2003 Alfa Romeo 156 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:
| 2003 Alfa Romeo 156 | 2005 Infiniti QX4 | |
| Make | Alfa Romeo | Infiniti |
| Model | 156 | QX4 |
| Year Released | 2003 | 2005 |
| Body Type | Station Wagon | SUV |
| Engine Position | Front | Front |
| Engine Size | 1747 cc | 3496 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 138 HP | 238 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 163 Nm | 359 Nm |
| Torque RPM | 3900 RPM | 3200 RPM |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1315 kg | 1960 kg |
| Vehicle Length | 4450 mm | 4660 mm |
| Vehicle Width | 1750 mm | 1850 mm |
| Vehicle Height | 1440 mm | 1800 mm |
| Wheelbase Size | 2600 mm | 2710 mm |
