2008 Audi A8 vs. 2007 GMC Sierra
To start off, 2008 Audi A8 is newer by 1 year(s). Which means there will be less support and parts availability for 2007 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2007 GMC Sierra would be higher. At 5,998 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (345 HP @ 5200 RPM) has 74 more horse power than 2008 Audi A8. (271 HP @ 3750 RPM) In normal driving conditions, 2007 GMC Sierra should accelerate faster than 2008 Audi A8.
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, 2008 Audi A8 (650 Nm @ 1800 RPM) has 135 more torque (in Nm) than 2007 GMC Sierra. (515 Nm @ 4000 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2007 GMC Sierra.
Compare all specifications:
| 2008 Audi A8 | 2007 GMC Sierra | |
| Make | Audi | GMC |
| Model | A8 | Sierra |
| Year Released | 2008 | 2007 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 3934 cc | 5998 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 271 HP | 345 HP |
| Engine RPM | 3750 RPM | 5200 RPM |
| Torque | 650 Nm | 515 Nm |
| Torque RPM | 1800 RPM | 4000 RPM |
| Engine Bore Size | 81 mm | 102 mm |
| Engine Stroke Size | 95.5 mm | 92 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 5060 mm | 5850 mm |
| Vehicle Width | 1900 mm | 2000 mm |
| Vehicle Height | 1450 mm | 1910 mm |
| Wheelbase Size | 2950 mm | 3650 mm |
| Fuel Consumption Overall | 9.7 L/100km | 15.8 L/100km |
| Fuel Tank Capacity | 90 L | 98 L |
