2008 Audi A8 vs. 2005 Infiniti FX
To start off, 2008 Audi A8 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Infiniti FX. In addition, the cost of maintenance, including insurance, on 2005 Infiniti FX would be higher. At 4,172 cc (8 cylinders), 2008 Audi A8 is equipped with a bigger engine. In terms of performance, 2008 Audi A8 (330 HP @ 6500 RPM) has 54 more horse power than 2005 Infiniti FX. (276 HP @ 6200 RPM). In normal driving conditions, 2008 Audi A8 should accelerate faster than 2005 Infiniti FX. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A8 weights approximately 70 kg more than 2005 Infiniti FX. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Infiniti FX. In wet, icy, snow, or gravel driving conditions, 2008 Audi A8 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, 2008 Audi A8 (431 Nm @ 3500 RPM) has 65 more torque (in Nm) than 2005 Infiniti FX. (366 Nm @ 4800 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Infiniti FX.
Compare all specifications:
| 2008 Audi A8 | 2005 Infiniti FX | |
| Make | Audi | Infiniti |
| Model | A8 | FX |
| Year Released | 2008 | 2005 |
| Body Type | Sedan | Crossover |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 3498 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 330 HP | 276 HP |
| Engine RPM | 6500 RPM | 6200 RPM |
| Torque | 431 Nm | 366 Nm |
| Torque RPM | 3500 RPM | 4800 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1910 kg | 1840 kg |
| Vehicle Length | 5190 mm | 4810 mm |
| Vehicle Width | 1900 mm | 1930 mm |
| Vehicle Height | 1460 mm | 1660 mm |
| Wheelbase Size | 3080 mm | 2860 mm |
| Fuel Tank Capacity | 90 L | 90 L |
