2008 GMC Sierra vs. 2011 Bentley Mulsanne
To start off, 2011 Bentley Mulsanne is newer by 3 year(s). Which means there will be less support and parts availability for 2008 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2008 GMC Sierra would be higher. At 6,800 cc (8 cylinders), 2011 Bentley Mulsanne is equipped with a bigger engine. In terms of performance, 2011 Bentley Mulsanne (505 HP @ 4200 RPM) has 189 more horse power than 2008 GMC Sierra. (316 HP @ 5200 RPM) In normal driving conditions, 2011 Bentley Mulsanne should accelerate faster than 2008 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2008 GMC Sierra weights approximately 74 kg more than 2011 Bentley Mulsanne.
Because 2008 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2011 Bentley Mulsanne. In wet, icy, snow, or gravel driving conditions, 2008 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 Bentley Mulsanne (1,018 Nm @ 1750 RPM) has 560 more torque (in Nm) than 2008 GMC Sierra. (458 Nm @ 4400 RPM). This means 2011 Bentley Mulsanne will have an easier job in driving up hills or pulling heavy equipment than 2008 GMC Sierra.
Compare all specifications:
| 2008 GMC Sierra | 2011 Bentley Mulsanne | |
| Make | GMC | Bentley |
| Model | Sierra | Mulsanne |
| Year Released | 2008 | 2011 |
| Body Type | Pickup | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5300 cc | 6800 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 316 HP | 505 HP |
| Engine RPM | 5200 RPM | 4200 RPM |
| Torque | 458 Nm | 1018 Nm |
| Torque RPM | 4400 RPM | 1750 RPM |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 2659 kg | 2585 kg |
| Vehicle Length | 6320 mm | 5575 mm |
| Vehicle Width | 2040 mm | 1925 mm |
| Vehicle Height | 1870 mm | 1521 mm |
| Wheelbase Size | 4010 mm | 3266 mm |
| Fuel Tank Capacity | 129 L | 96 L |
