2003 GMC Sierra 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 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2003 GMC Sierra would be higher. At 5,967 cc (8 cylinders), 2003 GMC Sierra is equipped with a bigger engine. In terms of performance, 2003 GMC Sierra (321 HP @ 5000 RPM) has 26 more horse power than 2006 GMC Sierra. (295 HP @ 5200 RPM). In normal driving conditions, 2003 GMC Sierra should accelerate faster than 2006 GMC Sierra.
Let's talk about torque, 2006 GMC Sierra (454 Nm @ 4000 RPM) has 84 more torque (in Nm) than 2003 GMC Sierra. (370 Nm @ 4000 RPM). This means 2006 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 GMC Sierra.
Compare all specifications:
| 2003 GMC Sierra | 2006 GMC Sierra | |
| Make | GMC | GMC |
| Model | Sierra | Sierra |
| Year Released | 2003 | 2006 |
| Body Type | Pickup | Pickup |
| Engine Position | Front | Front |
| Engine Size | 5967 cc | 5358 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 321 HP | 295 HP |
| Engine RPM | 5000 RPM | 5200 RPM |
| Torque | 370 Nm | 454 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline / Electric Hybrid |
| Number of Seats | 6 seats | 6 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 5790 mm | 5850 mm |
| Vehicle Width | 2000 mm | 2000 mm |
| Vehicle Height | 1850 mm | 1810 mm |
| Wheelbase Size | 3650 mm | 3650 mm |
| Fuel Consumption Overall | 13.1 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 117 L | 98 L |
