2003 Alfa Romeo GT 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 GT. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo GT would be higher. At 5,996 cc (8 cylinders), 2006 GMC Sierra is equipped with a bigger engine. In terms of performance, 2006 GMC Sierra (345 HP @ 5200 RPM) has 183 more horse power than 2003 Alfa Romeo GT. (162 HP @ 6400 RPM) In normal driving conditions, 2006 GMC Sierra should accelerate faster than 2003 Alfa Romeo GT. With that said, vehicle weight also plays an important factor in acceleration. 2006 GMC Sierra weights approximately 1138 kg more than 2003 Alfa Romeo GT. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alfa Romeo GT. In wet, icy, snow, or gravel driving conditions, 2006 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, 2006 GMC Sierra (515 Nm @ 4000 RPM) has 309 more torque (in Nm) than 2003 Alfa Romeo GT. (206 Nm @ 3250 RPM). This means 2006 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo GT.
Compare all specifications:
| 2003 Alfa Romeo GT | 2006 GMC Sierra | |
| Make | Alfa Romeo | GMC |
| Model | GT | Sierra |
| Year Released | 2003 | 2006 |
| Body Type | Coupe | Pickup |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 5996 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 162 HP | 345 HP |
| Engine RPM | 6400 RPM | 5200 RPM |
| Torque | 206 Nm | 515 Nm |
| Torque RPM | 3250 RPM | 4000 RPM |
| Engine Bore Size | 83.1 mm | 102 mm |
| Engine Stroke Size | 91 mm | 92 mm |
| Engine Compression Ratio | 11.3:1 | 9.2:1 |
| Drive Type | Front | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1340 kg | 2478 kg |
| Vehicle Length | 4500 mm | 5850 mm |
| Vehicle Width | 1770 mm | 2000 mm |
| Vehicle Height | 1370 mm | 1910 mm |
| Wheelbase Size | 2710 mm | 3650 mm |
| Fuel Consumption | 6.8 L/100km | 13.8 L/100km |
| Fuel Consumption City | 12.3 L/100km | 18.1 L/100km |
| Fuel Consumption Overall | 8.7 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 60 L | 98 L |
