2009 Audi S8 vs. 2012 GMC Sierra
To start off, 2012 GMC Sierra is newer by 3 year(s). Which means there will be less support and parts availability for 2009 Audi S8. In addition, the cost of maintenance, including insurance, on 2009 Audi S8 would be higher. At 6,200 cc (8 cylinders), 2012 GMC Sierra is equipped with a bigger engine. In terms of performance, 2009 Audi S8 (450 HP @ 7000 RPM) has 47 more horse power than 2012 GMC Sierra. (403 HP @ 5700 RPM). In normal driving conditions, 2009 Audi S8 should accelerate faster than 2012 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2012 GMC Sierra weights approximately 1177 kg more than 2009 Audi S8.
Because 2009 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 2012 GMC Sierra. In wet, icy, snow, or gravel driving conditions, 2009 Audi S8 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, 2012 GMC Sierra (565 Nm @ 4300 RPM) has 25 more torque (in Nm) than 2009 Audi S8. (540 Nm @ 3500 RPM). This means 2012 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi S8.
Compare all specifications:
| 2009 Audi S8 | 2012 GMC Sierra | |
| Make | Audi | GMC |
| Model | S8 | Sierra |
| Year Released | 2009 | 2012 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 6200 cc |
| Engine Cylinders | 10 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 450 HP | 403 HP |
| Engine RPM | 7000 RPM | 5700 RPM |
| Torque | 540 Nm | 565 Nm |
| Torque RPM | 3500 RPM | 4300 RPM |
| Fuel Type | Gasoline | Flex Fuel |
| Drive Type | AWD | Rear |
| Transmission Type | Automatic | 6-speed shiftable automatic |
| Vehicle Weight | 1175 kg | 2352 kg |
| Vehicle Length | 5070 mm | 5839 mm |
| Vehicle Width | 1900 mm | 2032 mm |
| Vehicle Height | 1430 mm | 1875 mm |
| Wheelbase Size | 2950 mm | 3645 mm |
| Fuel Consumption | 12.4 L/100km | 13.1 L/100km |
| Fuel Consumption City | 18.2 L/100km | 18.1 L/100km |
| Fuel Tank Capacity | 90 L | 98 L |
