2006 GMC Sierra vs. 2005 Pontiac Grand Am
To start off, 2006 GMC Sierra is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Pontiac Grand Am. In addition, the cost of maintenance, including insurance, on 2005 Pontiac Grand Am would be higher. At 5,996 cc (8 cylinders), 2006 GMC Sierra is equipped with a bigger engine. In terms of performance, 2006 GMC Sierra (345 HP @ 5200 RPM) has 170 more horse power than 2005 Pontiac Grand Am. (175 HP @ 5200 RPM). In normal driving conditions, 2006 GMC Sierra should accelerate faster than 2005 Pontiac Grand Am. With that said, vehicle weight also plays an important factor in acceleration. 2006 GMC Sierra weights approximately 1076 kg more than 2005 Pontiac Grand Am. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2005 Pontiac Grand Am. In wet, icy, snow, or gravel driving conditions, 2006 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, 2006 GMC Sierra (515 Nm) has 236 more torque (in Nm) than 2005 Pontiac Grand Am. (279 Nm). This means 2006 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2005 Pontiac Grand Am.
Compare all specifications:
| 2006 GMC Sierra | 2005 Pontiac Grand Am | |
| Make | GMC | Pontiac |
| Model | Sierra | Grand Am |
| Year Released | 2006 | 2005 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5996 cc | 3498 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 345 HP | 175 HP |
| Engine RPM | 5200 RPM | 5200 RPM |
| Torque | 515 Nm | 279 Nm |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 2478 kg | 1402 kg |
| Vehicle Length | 5850 mm | 4740 mm |
| Vehicle Width | 2000 mm | 1790 mm |
| Vehicle Height | 1910 mm | 1410 mm |
| Wheelbase Size | 3650 mm | 2860 mm |
| Fuel Consumption Highway | 13.8 L/100km | 8.1 L/100km |
| Fuel Consumption City | 18.1 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 15.7 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 98 L | 53 L |
