2003 Chevrolet Avalanche vs. 2005 GMC Sierra
To start off, 2005 GMC Sierra is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Chevrolet Avalanche. In addition, the cost of maintenance, including insurance, on 2003 Chevrolet Avalanche would be higher. At 5,965 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 GMC Sierra (300 HP) has 18 more horse power than 2003 Chevrolet Avalanche. (282 HP) In normal driving conditions, 2005 GMC Sierra should accelerate faster than 2003 Chevrolet Avalanche. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 694 kg more than 2003 Chevrolet Avalanche. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, 2005 GMC Sierra (488 Nm) has 48 more torque (in Nm) than 2003 Chevrolet Avalanche. (440 Nm). This means 2005 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 Chevrolet Avalanche.
Compare all specifications:
| 2003 Chevrolet Avalanche | 2005 GMC Sierra | |
| Make | Chevrolet | GMC |
| Model | Avalanche | Sierra |
| Year Released | 2003 | 2005 |
| Body Type | Pickup | Pickup |
| Engine Position | Front | Front |
| Engine Size | 5325 cc | 5965 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 282 HP | 300 HP |
| Torque | 440 Nm | 488 Nm |
| Engine Bore Size | 96 mm | 102 mm |
| Engine Stroke Size | 92 mm | 92 mm |
| Drive Type | 4WD | 4WD |
| Number of Seats | 6 seats | 6 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 2180 kg | 2874 kg |
| Vehicle Length | 5640 mm | 6510 mm |
| Vehicle Width | 2040 mm | 2030 mm |
| Vehicle Height | 1870 mm | 1960 mm |
| Wheelbase Size | 3310 mm | 4250 mm |
| Fuel Tank Capacity | 117 L | 129 L |
