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 207 more horse power than 2004 Audi A4. (128 HP @ 4000 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 306 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 133 more torque (in Nm) than 2004 Audi A4. (320 Nm @ 1900 RPM). This means 2005 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4. 2005 Infiniti M has automatic transmission and 2004 Audi A4 has manual transmission. 2004 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Infiniti M will be easier to drive especially in heavy traffic.
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 | 1896 cc | 4494 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 128 HP | 335 HP |
| Engine RPM | 4000 RPM | 6400 RPM |
| Torque | 320 Nm | 453 Nm |
| Torque RPM | 1900 RPM | 4000 RPM |
| Engine Bore Size | 79.5 mm | 93 mm |
| Engine Stroke Size | 95.5 mm | 82.7 mm |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1485 kg | 1791 kg |
| Vehicle Length | 4550 mm | 4900 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1520 mm |
| Wheelbase Size | 2660 mm | 2910 mm |
| Fuel Tank Capacity | 66 L | 75 L |
