2004 Audi A8 vs. 2009 Infiniti FX
To start off, 2009 Infiniti FX is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Audi A8. In addition, the cost of maintenance, including insurance, on 2004 Audi A8 would be higher. At 5,026 cc (8 cylinders), 2009 Infiniti FX is equipped with a bigger engine. In terms of performance, 2009 Infiniti FX (385 HP @ 6500 RPM) has 168 more horse power than 2004 Audi A8. (217 HP @ 6300 RPM) In normal driving conditions, 2009 Infiniti FX should accelerate faster than 2004 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2009 Infiniti FX weights approximately 420 kg more than 2004 Audi A8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Infiniti FX is four wheel drive (4WD), it will have significant more traction and grip than 2004 Audi A8. In wet, icy, snow, or gravel driving conditions, 2009 Infiniti FX 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, 2009 Infiniti FX (500 Nm @ 4400 RPM) has 200 more torque (in Nm) than 2004 Audi A8. (300 Nm @ 3200 RPM). This means 2009 Infiniti FX will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A8.
Compare all specifications:
| 2004 Audi A8 | 2009 Infiniti FX | |
| Make | Audi | Infiniti |
| Model | A8 | FX |
| Year Released | 2004 | 2009 |
| Body Type | Sedan | Crossover |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 5026 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 217 HP | 385 HP |
| Engine RPM | 6300 RPM | 6500 RPM |
| Torque | 300 Nm | 500 Nm |
| Torque RPM | 3200 RPM | 4400 RPM |
| Engine Bore Size | 82.5 mm | 95.5 mm |
| Engine Stroke Size | 92.8 mm | 87.7 mm |
| Engine Compression Ratio | 11.0:1 | 10.9:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1700 kg | 2120 kg |
| Vehicle Length | 5060 mm | 4870 mm |
| Vehicle Width | 1900 mm | 1930 mm |
| Vehicle Height | 1450 mm | 1690 mm |
| Wheelbase Size | 2770 mm | 2890 mm |
| Fuel Consumption Overall | 12.8 L/100km | 13 L/100km |
| Fuel Tank Capacity | 70 L | 90 L |
