2003 Alfa Romeo 147 vs. 2009 GMC Sierra
To start off, 2009 GMC Sierra is newer by 6 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 6,199 cc (8 cylinders), 2009 GMC Sierra is equipped with a bigger engine. In terms of performance, 2009 GMC Sierra (403 HP @ 5700 RPM) has 299 more horse power than 2003 Alfa Romeo 147. (104 HP @ 5600 RPM) In normal driving conditions, 2009 GMC Sierra should accelerate faster than 2003 Alfa Romeo 147. With that said, vehicle weight also plays an important factor in acceleration. 2009 GMC Sierra weights approximately 1394 kg more than 2003 Alfa Romeo 147. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alfa Romeo 147. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 GMC Sierra (565 Nm @ 4300 RPM) has 419 more torque (in Nm) than 2003 Alfa Romeo 147. (146 Nm @ 4200 RPM). This means 2009 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 147. 2009 GMC Sierra has automatic transmission and 2003 Alfa Romeo 147 has manual transmission. 2003 Alfa Romeo 147 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Alfa Romeo 147 | 2009 GMC Sierra | |
| Make | Alfa Romeo | GMC |
| Model | 147 | Sierra |
| Year Released | 2003 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 6199 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 104 HP | 403 HP |
| Engine RPM | 5600 RPM | 5700 RPM |
| Torque | 146 Nm | 565 Nm |
| Torque RPM | 4200 RPM | 4300 RPM |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1265 kg | 2659 kg |
| Vehicle Length | 4180 mm | 5850 mm |
| Vehicle Width | 1740 mm | 2040 mm |
| Vehicle Height | 1450 mm | 1880 mm |
| Wheelbase Size | 2550 mm | 3650 mm |
| Fuel Consumption Overall | 8.1 L/100km | 17 L/100km |
| Fuel Tank Capacity | 63 L | 98 L |
