2011 GMC Sierra vs. 2003 Alfa Romeo 156
To start off, 2011 GMC Sierra is newer by 8 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 5,300 cc (8 cylinders), 2011 GMC Sierra is equipped with a bigger engine. In terms of performance, 2011 GMC Sierra (315 HP @ 5200 RPM) has 68 more horse power than 2003 Alfa Romeo 156. (247 HP @ 6200 RPM). In normal driving conditions, 2011 GMC Sierra should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2011 GMC Sierra weights approximately 776 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 2011 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 2011 GMC Sierra. However, in wet, icy, snow, or gravel driving conditions, 2003 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, 2011 GMC Sierra (454 Nm @ 4000 RPM) has 148 more torque (in Nm) than 2003 Alfa Romeo 156. (306 Nm @ 4800 RPM). This means 2011 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 156.
Compare all specifications:
| 2011 GMC Sierra | 2003 Alfa Romeo 156 | |
| Make | GMC | Alfa Romeo |
| Model | Sierra | 156 |
| Year Released | 2011 | 2003 |
| Body Type | Pickup | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 5300 cc | 3179 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 315 HP | 247 HP |
| Engine RPM | 5200 RPM | 6200 RPM |
| Torque | 454 Nm | 306 Nm |
| Torque RPM | 4000 RPM | 4800 RPM |
| Fuel Type | Flex Fuel | Gasoline - Premium |
| Drive Type | Rear | Front |
| Transmission Type | 6-speed shiftable automatic | Automatic |
| Vehicle Weight | 2311 kg | 1535 kg |
| Vehicle Length | 5847 mm | 4450 mm |
| Vehicle Width | 2032 mm | 1750 mm |
| Wheelbase Size | 3645 mm | 2550 mm |
| Fuel Tank Capacity | 98 L | 63 L |
