2006 Alfa Romeo 147 vs. 2007 GMC Sierra
To start off, 2007 GMC Sierra is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Alfa Romeo 147. In addition, the cost of maintenance, including insurance, on 2006 Alfa Romeo 147 would be higher. At 5,357 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (315 HP @ 5200 RPM) has 201 more horse power than 2006 Alfa Romeo 147. (114 HP @ 4000 RPM) In normal driving conditions, 2007 GMC Sierra should accelerate faster than 2006 Alfa Romeo 147. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 850 kg more than 2006 Alfa Romeo 147. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2006 Alfa Romeo 147. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 GMC Sierra (458 Nm @ 4400 RPM) has 183 more torque (in Nm) than 2006 Alfa Romeo 147. (275 Nm @ 2000 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2006 Alfa Romeo 147. 2007 GMC Sierra has automatic transmission and 2006 Alfa Romeo 147 has manual transmission. 2006 Alfa Romeo 147 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Alfa Romeo 147 | 2007 GMC Sierra | |
| Make | Alfa Romeo | GMC |
| Model | 147 | Sierra |
| Year Released | 2006 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 5357 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 114 HP | 315 HP |
| Engine RPM | 4000 RPM | 5200 RPM |
| Torque | 275 Nm | 458 Nm |
| Torque RPM | 2000 RPM | 4400 RPM |
| Engine Bore Size | 82 mm | 96 mm |
| Engine Stroke Size | 90.4 mm | 92 mm |
| Engine Compression Ratio | 18.5:1 | 9.4:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1585 kg | 2435 kg |
| Vehicle Length | 4230 mm | 6320 mm |
| Vehicle Width | 1740 mm | 2040 mm |
| Vehicle Height | 1450 mm | 1880 mm |
| Wheelbase Size | 2550 mm | 4010 mm |
| Fuel Consumption Overall | 6 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 60 L | 129 L |
