2009 Audi A6 vs. 2007 GMC Sierra
To start off, 2009 Audi A6 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 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 197 more horse power than 2009 Audi A6. (148 HP @ 5700 RPM) In normal driving conditions, 2007 GMC Sierra should accelerate faster than 2009 Audi A6.
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 GMC Sierra (515 Nm @ 4000 RPM) has 305 more torque (in Nm) than 2009 Audi A6. (210 Nm @ 1750 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6. 2007 GMC Sierra has automatic transmission and 2009 Audi A6 has manual transmission. 2009 Audi A6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A6 | 2007 GMC Sierra | |
| Make | Audi | GMC |
| Model | A6 | Sierra |
| Year Released | 2009 | 2007 |
| Body Type | Station Wagon | Pickup |
| Engine Position | Front | Front |
| Engine Size | 1779 cc | 5998 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 148 HP | 345 HP |
| Engine RPM | 5700 RPM | 5200 RPM |
| Torque | 210 Nm | 515 Nm |
| Torque RPM | 1750 RPM | 4000 RPM |
| Engine Bore Size | 81 mm | 102 mm |
| Engine Stroke Size | 86.4 mm | 92 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Length | 4800 mm | 5850 mm |
| Vehicle Width | 1820 mm | 2000 mm |
| Vehicle Height | 1460 mm | 1910 mm |
| Wheelbase Size | 2770 mm | 3650 mm |
| Fuel Consumption Overall | 9.4 L/100km | 15.8 L/100km |
| Fuel Tank Capacity | 70 L | 98 L |
