2009 Infiniti M vs. 2005 Audi A4
To start off, 2009 Infiniti M is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 would be higher. At 3,498 cc (6 cylinders), 2009 Infiniti M is equipped with a bigger engine. In terms of performance, 2009 Infiniti M (303 HP @ 6800 RPM) has 86 more horse power than 2005 Audi A4. (217 HP @ 6300 RPM). In normal driving conditions, 2009 Infiniti M should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Infiniti M weights approximately 112 kg more than 2005 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, 2009 Infiniti M (355 Nm @ 4800 RPM) has 55 more torque (in Nm) than 2005 Audi A4. (300 Nm @ 3200 RPM). This means 2009 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2009 Infiniti M | 2005 Audi A4 | |
| Make | Infiniti | Audi |
| Model | M | A4 |
| Year Released | 2009 | 2005 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3498 cc | 2981 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 303 HP | 217 HP |
| Engine RPM | 6800 RPM | 6300 RPM |
| Torque | 355 Nm | 300 Nm |
| Torque RPM | 4800 RPM | 3200 RPM |
| Engine Bore Size | 95.5 mm | 82.5 mm |
| Engine Stroke Size | 81.4 mm | 92.8 mm |
| Engine Compression Ratio | 10.3:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1722 kg | 1610 kg |
| Vehicle Length | 4940 mm | 4550 mm |
| Vehicle Width | 1810 mm | 1780 mm |
| Vehicle Height | 1530 mm | 1430 mm |
| Wheelbase Size | 2910 mm | 2660 mm |
| Fuel Consumption Overall | 13.1 L/100km | 10.9 L/100km |
| Fuel Tank Capacity | 76 L | 66 L |
