2003 Alfa Romeo 147 vs. 2006 GMC Sierra
To start off, 2006 GMC Sierra is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 147. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 147 would be higher. At 5,358 cc (8 cylinders), 2006 GMC Sierra is equipped with a bigger engine. In terms of performance, 2006 GMC Sierra (295 HP @ 5200 RPM) has 48 more horse power than 2003 Alfa Romeo 147. (247 HP @ 6200 RPM) In normal driving conditions, 2006 GMC Sierra should accelerate faster than 2003 Alfa Romeo 147.
Let's talk about torque, 2006 GMC Sierra (454 Nm @ 4000 RPM) has 154 more torque (in Nm) than 2003 Alfa Romeo 147. (300 Nm @ 4800 RPM). This means 2006 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 147.
Compare all specifications:
| 2003 Alfa Romeo 147 | 2006 GMC Sierra | |
| Make | Alfa Romeo | GMC |
| Model | 147 | Sierra |
| Year Released | 2003 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 3178 cc | 5358 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 247 HP | 295 HP |
| Engine RPM | 6200 RPM | 5200 RPM |
| Torque | 300 Nm | 454 Nm |
| Torque RPM | 4800 RPM | 4000 RPM |
| Engine Bore Size | 93 mm | 96 mm |
| Engine Stroke Size | 78 mm | 92 mm |
| Engine Compression Ratio | 10.5:1 | 9.5:1 |
| Fuel Type | Gasoline | Gasoline / Electric Hybrid |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Length | 4180 mm | 5850 mm |
| Vehicle Width | 1740 mm | 2000 mm |
| Vehicle Height | 1450 mm | 1810 mm |
| Wheelbase Size | 2710 mm | 3650 mm |
| Fuel Consumption Overall | 7.5 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 63 L | 98 L |
