2007 Alfa Romeo 156 vs. 2004 GMC Sierra
To start off, 2007 Alfa Romeo 156 is newer by 3 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 (340 HP @ 5200 RPM) has 192 more horse power than 2007 Alfa Romeo 156. (148 HP @ 6300 RPM) In normal driving conditions, 2004 GMC Sierra should accelerate faster than 2007 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2004 GMC Sierra weights approximately 1010 kg more than 2007 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 2007 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 (516 Nm @ 4000 RPM) has 334 more torque (in Nm) than 2007 Alfa Romeo 156. (182 Nm @ 3800 RPM). This means 2004 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2007 Alfa Romeo 156. 2004 GMC Sierra has automatic transmission and 2007 Alfa Romeo 156 has manual transmission. 2007 Alfa Romeo 156 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Alfa Romeo 156 | 2004 GMC Sierra | |
| Make | Alfa Romeo | GMC |
| Model | 156 | Sierra |
| Year Released | 2007 | 2004 |
| Body Type | Station Wagon | Pickup |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 5965 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 148 HP | 340 HP |
| Engine RPM | 6300 RPM | 5200 RPM |
| Torque | 182 Nm | 516 Nm |
| Torque RPM | 3800 RPM | 4000 RPM |
| Engine Bore Size | 83 mm | 102 mm |
| Engine Stroke Size | 91 mm | 92 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 1335 kg | 2345 kg |
| Vehicle Length | 4450 mm | 5740 mm |
| Vehicle Width | 1750 mm | 2000 mm |
| Vehicle Height | 1440 mm | 1910 mm |
| Wheelbase Size | 2600 mm | 3650 mm |
