2005 Audi A8 vs. 2009 Infiniti G37
To start off, 2009 Infiniti G37 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 3,697 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Infiniti G37 (329 HP @ 7000 RPM) has 58 more horse power than 2005 Audi A8. (271 HP @ 6000 RPM) In normal driving conditions, 2009 Infiniti G37 should accelerate faster than 2005 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 450 kg more than 2009 Infiniti G37.
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 Infiniti G37 (365 Nm @ 5200 RPM) has 5 more torque (in Nm) than 2005 Audi A8. (360 Nm @ 3250 RPM). This means 2009 Infiniti G37 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A8.
Compare all specifications:
| 2005 Audi A8 | 2009 Infiniti G37 | |
| Make | Audi | Infiniti |
| Model | A8 | G37 |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3697 cc | 3696 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 271 HP | 329 HP |
| Engine RPM | 6000 RPM | 7000 RPM |
| Torque | 360 Nm | 365 Nm |
| Torque RPM | 3250 RPM | 5200 RPM |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1770 kg | 1320 kg |
| Vehicle Length | 5060 mm | 4760 mm |
| Vehicle Width | 1900 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2890 mm | 2860 mm |
| Fuel Consumption Overall | 11.7 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 90 L | 76 L |
