2004 Audi A4 vs. 2005 Infiniti M
To start off, 2005 Infiniti M is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Audi A4. In addition, the cost of maintenance, including insurance, on 2004 Audi A4 would be higher. At 4,494 cc (8 cylinders), 2005 Infiniti M is equipped with a bigger engine. In terms of performance, 2005 Infiniti M (335 HP @ 6400 RPM) has 138 more horse power than 2004 Audi A4. (197 HP @ 5100 RPM) In normal driving conditions, 2005 Infiniti M should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Infiniti M weights approximately 205 kg more than 2004 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Infiniti M. In wet, icy, snow, or gravel driving conditions, 2004 Audi A4 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, 2005 Infiniti M (453 Nm @ 4000 RPM) has 173 more torque (in Nm) than 2004 Audi A4. (280 Nm @ 1800 RPM). This means 2005 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4.
Compare all specifications:
| 2004 Audi A4 | 2005 Infiniti M | |
| Make | Audi | Infiniti |
| Model | A4 | M |
| Year Released | 2004 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 4494 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 197 HP | 335 HP |
| Engine RPM | 5100 RPM | 6400 RPM |
| Torque | 280 Nm | 453 Nm |
| Torque RPM | 1800 RPM | 4000 RPM |
| Engine Bore Size | 82.5 mm | 93 mm |
| Engine Stroke Size | 92.8 mm | 82.7 mm |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1535 kg | 1740 kg |
| Vehicle Length | 4590 mm | 5020 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2470 mm | 2810 mm |
| Fuel Tank Capacity | 63 L | 79 L |
