1999 Audi A4 vs. 2006 Infiniti FX
To start off, 2006 Infiniti FX is newer by 7 year(s). Which means there will be less support and parts availability for 1999 Audi A4. In addition, the cost of maintenance, including insurance, on 1999 Audi A4 would be higher. At 4,490 cc (8 cylinders), 2006 Infiniti FX is equipped with a bigger engine. In terms of performance, 2006 Infiniti FX (320 HP @ 6400 RPM) has 72 more horse power than 1999 Audi A4. (248 HP @ 4150 RPM) In normal driving conditions, 2006 Infiniti FX should accelerate faster than 1999 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Infiniti FX weights approximately 525 kg more than 1999 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2006 Infiniti FX (454 Nm @ 4000 RPM) has 115 more torque (in Nm) than 1999 Audi A4. (339 Nm @ 1900 RPM). This means 2006 Infiniti FX will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4.
Compare all specifications:
| 1999 Audi A4 | 2006 Infiniti FX | |
| Make | Audi | Infiniti |
| Model | A4 | FX |
| Year Released | 1999 | 2006 |
| Body Type | Station Wagon | Crossover |
| Engine Position | Front | Front |
| Engine Size | 1896 cc | 4490 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 248 HP | 320 HP |
| Engine RPM | 4150 RPM | 6400 RPM |
| Torque | 339 Nm | 454 Nm |
| Torque RPM | 1900 RPM | 4000 RPM |
| Engine Bore Size | 79.5 mm | 93 mm |
| Engine Stroke Size | 95.5 mm | 82.7 mm |
| Engine Compression Ratio | 19.5:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1430 kg | 1955 kg |
| Vehicle Length | 4480 mm | 4810 mm |
| Vehicle Width | 1740 mm | 1930 mm |
| Vehicle Height | 1420 mm | 1660 mm |
| Wheelbase Size | 2610 mm | 2860 mm |
| Fuel Tank Capacity | 60 L | 90 L |
