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 5,964 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 GMC Sierra (340 HP @ 5200 RPM) has 58 more horse power than 2003 Chevrolet Avalanche. (282 HP @ 5200 RPM) 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 165 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 (516 Nm @ 4000 RPM) has 76 more torque (in Nm) than 2003 Chevrolet Avalanche. (440 Nm @ 4000 RPM). 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 | 5964 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 282 HP | 340 HP |
| Engine RPM | 5200 RPM | 5200 RPM |
| Torque | 440 Nm | 516 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 96 mm | 102 mm |
| Engine Stroke Size | 92 mm | 92 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 6 seats | 5 seats |
| Vehicle Weight | 2180 kg | 2345 kg |
| Vehicle Length | 5640 mm | 5740 mm |
| Vehicle Width | 2040 mm | 2000 mm |
| Vehicle Height | 1870 mm | 1910 mm |
| Wheelbase Size | 3310 mm | 3650 mm |
