2003 Alfa Romeo 156 vs. 2006 Hummer H2
To start off, 2006 Hummer H2 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 5,967 cc (8 cylinders), 2006 Hummer H2 is equipped with a bigger engine. In terms of performance, 2006 Hummer H2 (325 HP @ 5200 RPM) has 136 more horse power than 2003 Alfa Romeo 156. (189 HP @ 6300 RPM) In normal driving conditions, 2006 Hummer H2 should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2006 Hummer H2 weights approximately 1469 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 Hummer H2 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 Hummer H2 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 Hummer H2 (495 Nm @ 4000 RPM) has 277 more torque (in Nm) than 2003 Alfa Romeo 156. (218 Nm @ 5000 RPM). This means 2006 Hummer H2 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 Hummer H2 | |
| Make | Alfa Romeo | Hummer |
| Model | 156 | H2 |
| Year Released | 2003 | 2006 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 5967 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 189 HP | 325 HP |
| Engine RPM | 6300 RPM | 5200 RPM |
| Torque | 218 Nm | 495 Nm |
| Torque RPM | 5000 RPM | 4000 RPM |
| Engine Bore Size | 88 mm | 101.6 mm |
| Engine Stroke Size | 68.3 mm | 91.9 mm |
| Engine Compression Ratio | 10.3:1 | 9.4:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1434 kg | 2903 kg |
| Vehicle Length | 4440 mm | 4830 mm |
| Vehicle Width | 1750 mm | 2070 mm |
| Vehicle Height | 1400 mm | 2000 mm |
| Wheelbase Size | 2600 mm | 3130 mm |
| Fuel Consumption Overall | 11.8 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 63 L | 121 L |
