2005 Alfa Romeo 156 vs. 2006 GMC Sierra
To start off, 2006 GMC Sierra is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2005 Alfa Romeo 156 would be higher. At 5,965 cc (8 cylinders), 2006 GMC Sierra is equipped with a bigger engine. In terms of performance, 2006 GMC Sierra (300 HP @ 4400 RPM) has 115 more horse power than 2005 Alfa Romeo 156. (185 HP @ 5000 RPM) In normal driving conditions, 2006 GMC Sierra should accelerate faster than 2005 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2006 GMC Sierra weights approximately 1188 kg more than 2005 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2005 Alfa Romeo 156. In wet, icy, snow, or gravel driving conditions, 2006 GMC Sierra 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 GMC Sierra (488 Nm @ 4000 RPM) has 266 more torque (in Nm) than 2005 Alfa Romeo 156. (222 Nm @ 5000 RPM). This means 2006 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo 156.
Compare all specifications:
| 2005 Alfa Romeo 156 | 2006 GMC Sierra | |
| Make | Alfa Romeo | GMC |
| Model | 156 | Sierra |
| Year Released | 2005 | 2006 |
| Body Type | Station Wagon | Pickup |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 5965 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 185 HP | 300 HP |
| Engine RPM | 5000 RPM | 4400 RPM |
| Torque | 222 Nm | 488 Nm |
| Torque RPM | 5000 RPM | 4000 RPM |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 3 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1490 kg | 2678 kg |
| Vehicle Length | 4450 mm | 5710 mm |
| Vehicle Width | 1750 mm | 2450 mm |
| Vehicle Height | 1440 mm | 1950 mm |
| Wheelbase Size | 2710 mm | 3380 mm |
| Fuel Consumption Overall | 11.8 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 72 L | 129 L |
