2007 Audi A8 vs. 2009 GMC Sierra
To start off, 2009 GMC Sierra is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A8. In addition, the cost of maintenance, including insurance, on 2007 Audi A8 would be higher. At 5,999 cc (8 cylinders), 2009 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 Audi A8 (444 HP @ 6200 RPM) has 91 more horse power than 2009 GMC Sierra. (353 HP @ 5400 RPM). In normal driving conditions, 2007 Audi A8 should accelerate faster than 2009 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2009 GMC Sierra weights approximately 146 kg more than 2007 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, 2007 Audi A8 (580 Nm @ 4000 RPM) has 74 more torque (in Nm) than 2009 GMC Sierra. (506 Nm @ 4400 RPM). This means 2007 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2009 GMC Sierra.
Compare all specifications:
| 2007 Audi A8 | 2009 GMC Sierra | |
| Make | Audi | GMC |
| Model | A8 | Sierra |
| Year Released | 2007 | 2009 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 5996 cc | 5999 cc |
| Engine Type | W | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 444 HP | 353 HP |
| Engine RPM | 6200 RPM | 5400 RPM |
| Torque | 580 Nm | 506 Nm |
| Torque RPM | 4000 RPM | 4400 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1995 kg | 2141 kg |
| Vehicle Length | 5070 mm | 6580 mm |
| Vehicle Width | 1900 mm | 2040 mm |
| Vehicle Height | 1450 mm | 1960 mm |
| Wheelbase Size | 3080 mm | 4250 mm |
| Fuel Consumption Overall | 13.8 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 90 L | 129 L |
