2006 Alfa Romeo 156 vs. 2004 GMC Sierra
To start off, 2006 Alfa Romeo 156 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2004 GMC Sierra would be higher. At 5,964 cc (8 cylinders), 2004 GMC Sierra is equipped with a bigger engine. In terms of performance, 2004 GMC Sierra (300 HP) has 186 more horse power than 2006 Alfa Romeo 156. (114 HP) In normal driving conditions, 2004 GMC Sierra should accelerate faster than 2006 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2004 GMC Sierra weights approximately 1029 kg more than 2006 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 GMC Sierra is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2004 GMC Sierra. However, in wet, icy, snow, or gravel driving conditions, 2006 Alfa Romeo 156, being front wheel drive (FWD), will offer much better control with better grip. 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, 2004 GMC Sierra (488 Nm) has 213 more torque (in Nm) than 2006 Alfa Romeo 156. (275 Nm). This means 2004 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2006 Alfa Romeo 156.
Compare all specifications:
| 2006 Alfa Romeo 156 | 2004 GMC Sierra | |
| Make | Alfa Romeo | GMC |
| Model | 156 | Sierra |
| Year Released | 2006 | 2004 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 5964 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 114 HP | 300 HP |
| Torque | 275 Nm | 488 Nm |
| Engine Bore Size | 82 mm | 102 mm |
| Engine Stroke Size | 90.4 mm | 92 mm |
| Engine Compression Ratio | 18.4:1 | 9.4:1 |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 3 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1308 kg | 2337 kg |
| Vehicle Length | 4440 mm | 5650 mm |
| Vehicle Width | 1750 mm | 2030 mm |
| Vehicle Height | 1440 mm | 1940 mm |
| Wheelbase Size | 2600 mm | 3380 mm |
| Fuel Tank Capacity | 63 L | 129 L |
