2005 Audi A8 vs. 2009 Infiniti EX
To start off, 2009 Infiniti EX 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 EX (317 HP @ 7000 RPM) has 46 more horse power than 2005 Audi A8. (271 HP @ 6000 RPM) In normal driving conditions, 2009 Infiniti EX should accelerate faster than 2005 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 51 kg more than 2009 Infiniti EX.
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, both vehicles can yield 360 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2005 Audi A8 | 2009 Infiniti EX | |
| Make | Audi | Infiniti |
| Model | A8 | EX |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | SUV |
| 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 | 317 HP |
| Engine RPM | 6000 RPM | 7000 RPM |
| Torque | 360 Nm | 360 Nm |
| Torque RPM | 3250 RPM | 5200 RPM |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 240 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 6.4 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1770 kg | 1719 kg |
| Vehicle Length | 5060 mm | 4640 mm |
| Vehicle Width | 1900 mm | 1810 mm |
| Vehicle Height | 1450 mm | 1600 mm |
| Wheelbase Size | 2890 mm | 2810 mm |
| Fuel Consumption Overall | 11.7 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 90 L | 82 L |
