2008 Audi A8 vs. 2009 Mercedes-Benz G
To start off, 2009 Mercedes-Benz G 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 5,439 cc (8 cylinders), 2009 Mercedes-Benz G is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz G (500 HP @ 6100 RPM) has 229 more horse power than 2008 Audi A8. (271 HP @ 3750 RPM) In normal driving conditions, 2009 Mercedes-Benz G should accelerate faster than 2008 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A8 weights approximately 715 kg more than 2009 Mercedes-Benz G.
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, 2009 Mercedes-Benz G (700 Nm @ 2750 RPM) has 50 more torque (in Nm) than 2008 Audi A8. (650 Nm @ 1800 RPM). This means 2009 Mercedes-Benz G will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A8.
Compare all specifications:
| 2008 Audi A8 | 2009 Mercedes-Benz G | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | G |
| Year Released | 2008 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3934 cc | 5439 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 271 HP | 500 HP |
| Engine RPM | 3750 RPM | 6100 RPM |
| Torque | 650 Nm | 700 Nm |
| Torque RPM | 1800 RPM | 2750 RPM |
| Engine Compression Ratio | 18.0:1 | 9.0:1 |
| Fuel Type | Diesel | Diesel |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1940 kg | 1225 kg |
| Vehicle Length | 5060 mm | 4690 mm |
| Vehicle Width | 1900 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1940 mm |
| Wheelbase Size | 2950 mm | 2860 mm |
| Fuel Consumption Overall | 9.7 L/100km | 19.6 L/100km |
| Fuel Tank Capacity | 90 L | 96 L |
