2008 Audi A4 vs. 2009 Infiniti FX
To start off, 2009 Infiniti FX is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi A4. In addition, the cost of maintenance, including insurance, on 2008 Audi A4 would be higher. At 3,498 cc (6 cylinders), 2009 Infiniti FX is equipped with a bigger engine. In terms of performance, 2009 Infiniti FX (303 HP @ 6800 RPM) has 73 more horse power than 2008 Audi A4. (230 HP @ 4000 RPM) In normal driving conditions, 2009 Infiniti FX should accelerate faster than 2008 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A4 weights approximately 75 kg more than 2009 Infiniti FX.
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, 2008 Audi A4 (450 Nm @ 1400 RPM) has 95 more torque (in Nm) than 2009 Infiniti FX. (355 Nm @ 4800 RPM). This means 2008 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Infiniti FX. 2009 Infiniti FX has automatic transmission and 2008 Audi A4 has manual transmission. 2008 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Infiniti FX will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Audi A4 | 2009 Infiniti FX | |
| Make | Audi | Infiniti |
| Model | A4 | FX |
| Year Released | 2008 | 2009 |
| Body Type | Convertible | Crossover |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 3498 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 230 HP | 303 HP |
| Engine RPM | 4000 RPM | 6800 RPM |
| Torque | 450 Nm | 355 Nm |
| Torque RPM | 1400 RPM | 4800 RPM |
| Engine Compression Ratio | 17.0:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1794 kg | 1719 kg |
| Vehicle Length | 4580 mm | 4870 mm |
| Vehicle Width | 1780 mm | 1930 mm |
| Vehicle Height | 1400 mm | 1660 mm |
| Wheelbase Size | 2660 mm | 2890 mm |
| Fuel Consumption Overall | 8 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 63 L | 90 L |
