2009 Audi A8 vs. 2007 GMC Sierra
To start off, 2009 Audi A8 is newer by 2 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 4,294 cc (6 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (207 HP @ 5500 RPM) has 12 more horse power than 2007 GMC Sierra. (195 HP @ 4600 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2007 GMC Sierra.
Because 2007 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2009 Audi A8. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 GMC Sierra (354 Nm @ 2800 RPM) has 74 more torque (in Nm) than 2009 Audi A8. (280 Nm @ 3000 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A8.
Compare all specifications:
| 2009 Audi A8 | 2007 GMC Sierra | |
| Make | Audi | GMC |
| Model | A8 | Sierra |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 2772 cc | 4294 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 207 HP | 195 HP |
| Engine RPM | 5500 RPM | 4600 RPM |
| Torque | 280 Nm | 354 Nm |
| Torque RPM | 3000 RPM | 2800 RPM |
| Engine Bore Size | 84.5 mm | 101.6 mm |
| Engine Stroke Size | 82.4 mm | 88.4 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 3 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 5070 mm | 5790 mm |
| Vehicle Width | 1900 mm | 2000 mm |
| Vehicle Height | 1450 mm | 1850 mm |
| Wheelbase Size | 2950 mm | 3650 mm |
| Fuel Tank Capacity | 90 L | 129 L |
