2008 Audi A8 vs. 2009 GMC Sierra
To start off, 2009 GMC Sierra is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi A8. In addition, the cost of maintenance, including insurance, on 2008 Audi A8 would be higher. At 5,999 cc (8 cylinders), 2009 GMC Sierra is equipped with a bigger engine. In terms of performance, 2008 Audi A8 (330 HP @ 6500 RPM) has 18 more horse power than 2009 GMC Sierra. (312 HP @ 4400 RPM). In normal driving conditions, 2008 Audi A8 should accelerate faster than 2009 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A8 weights approximately 16 kg more than 2009 GMC Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2009 GMC Sierra. In wet, icy, snow, or gravel driving conditions, 2008 Audi A8 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, 2009 GMC Sierra (506 Nm @ 4400 RPM) has 75 more torque (in Nm) than 2008 Audi A8. (431 Nm @ 3500 RPM). This means 2009 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A8.
Compare all specifications:
| 2008 Audi A8 | 2009 GMC Sierra | |
| Make | Audi | GMC |
| Model | A8 | Sierra |
| Year Released | 2008 | 2009 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 5999 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 330 HP | 312 HP |
| Engine RPM | 6500 RPM | 4400 RPM |
| Torque | 431 Nm | 506 Nm |
| Torque RPM | 3500 RPM | 4400 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1910 kg | 1894 kg |
| Vehicle Length | 5190 mm | 6580 mm |
| Vehicle Width | 1900 mm | 2440 mm |
| Vehicle Height | 1460 mm | 1940 mm |
| Wheelbase Size | 3080 mm | 4250 mm |
| Fuel Consumption Overall | 11.9 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 90 L | 129 L |
