2003 Chevrolet Silverado vs. 2011 GMC Sierra
To start off, 2011 GMC Sierra is newer by 8 year(s). Which means there will be less support and parts availability for 2003 Chevrolet Silverado. In addition, the cost of maintenance, including insurance, on 2003 Chevrolet Silverado would be higher. At 5,999 cc (8 cylinders), 2011 GMC Sierra is equipped with a bigger engine. In terms of performance, 2011 GMC Sierra (312 HP @ 4400 RPM) has 119 more horse power than 2003 Chevrolet Silverado. (193 HP @ 4600 RPM) In normal driving conditions, 2011 GMC Sierra should accelerate faster than 2003 Chevrolet Silverado. With that said, vehicle weight also plays an important factor in acceleration. 2011 GMC Sierra weights approximately 119 kg more than 2003 Chevrolet Silverado. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Chevrolet Silverado is four wheel drive (4WD), it will have significant more traction and grip than 2011 GMC Sierra. In wet, icy, snow, or gravel driving conditions, 2003 Chevrolet Silverado 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, 2011 GMC Sierra (506 Nm @ 4400 RPM) has 152 more torque (in Nm) than 2003 Chevrolet Silverado. (354 Nm @ 2800 RPM). This means 2011 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 Chevrolet Silverado.
Compare all specifications:
| 2003 Chevrolet Silverado | 2011 GMC Sierra | |
| Make | Chevrolet | GMC |
| Model | Silverado | Sierra |
| Year Released | 2003 | 2011 |
| Body Type | Pickup | Pickup |
| Engine Position | Front | Front |
| Engine Size | 4293 cc | 5999 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 193 HP | 312 HP |
| Engine RPM | 4600 RPM | 4400 RPM |
| Torque | 354 Nm | 506 Nm |
| Torque RPM | 2800 RPM | 4400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 3 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1775 kg | 1894 kg |
| Vehicle Length | 5170 mm | 6580 mm |
| Vehicle Width | 2000 mm | 2440 mm |
| Vehicle Height | 1810 mm | 1940 mm |
| Wheelbase Size | 3030 mm | 4250 mm |
| Fuel Tank Capacity | 68 L | 129 L |
