2005 Alfa Romeo 156 vs. 2004 GMC Sierra
To start off, 2005 Alfa Romeo 156 is newer by 1 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 5,965 cc (8 cylinders), 2004 GMC Sierra is equipped with a bigger engine. In terms of performance, 2004 GMC Sierra (300 HP) has 126 more horse power than 2005 Alfa Romeo 156. (174 HP) In normal driving conditions, 2004 GMC Sierra should accelerate faster than 2005 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2004 GMC Sierra weights approximately 1220 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 2004 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, 2004 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, 2004 GMC Sierra (489 Nm) has 104 more torque (in Nm) than 2005 Alfa Romeo 156. (385 Nm). This means 2004 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 | 2004 GMC Sierra | |
| Make | Alfa Romeo | GMC |
| Model | 156 | Sierra |
| Year Released | 2005 | 2004 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 5965 cc |
| Engine Cylinders | 5 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 174 HP | 300 HP |
| Torque | 385 Nm | 489 Nm |
| Engine Bore Size | 82 mm | 102 mm |
| Engine Stroke Size | 90.4 mm | 92 mm |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1510 kg | 2730 kg |
| Vehicle Length | 4440 mm | 6030 mm |
| Vehicle Width | 1750 mm | 2030 mm |
| Vehicle Height | 1400 mm | 1940 mm |
| Wheelbase Size | 2550 mm | 4250 mm |
| Fuel Tank Capacity | 63 L | 129 L |
