2003 Pontiac G6 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 Pontiac G6. In addition, the cost of maintenance, including insurance, on 2003 Pontiac G6 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 (353 HP @ 5400 RPM) has 67 more horse power than 2003 Pontiac G6. (286 HP @ 5600 RPM) In normal driving conditions, 2011 GMC Sierra should accelerate faster than 2003 Pontiac G6. With that said, vehicle weight also plays an important factor in acceleration. 2011 GMC Sierra weights approximately 640 kg more than 2003 Pontiac G6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2011 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2003 Pontiac G6. In wet, icy, snow, or gravel driving conditions, 2011 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, 2011 GMC Sierra (506 Nm) has 137 more torque (in Nm) than 2003 Pontiac G6. (369 Nm). This means 2011 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 Pontiac G6.
Compare all specifications:
| 2003 Pontiac G6 | 2011 GMC Sierra | |
| Make | Pontiac | GMC |
| Model | G6 | Sierra |
| Year Released | 2003 | 2011 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 3392 cc | 5999 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 286 HP | 353 HP |
| Engine RPM | 5600 RPM | 5400 RPM |
| Torque | 369 Nm | 506 Nm |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1501 kg | 2141 kg |
| Vehicle Length | 4690 mm | 6580 mm |
| Vehicle Width | 1780 mm | 2040 mm |
| Vehicle Height | 1330 mm | 1960 mm |
| Wheelbase Size | 2950 mm | 4250 mm |
