2007 Audi RS4 vs. 2009 Infiniti M
To start off, 2009 Infiniti M is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi RS4. In addition, the cost of maintenance, including insurance, on 2007 Audi RS4 would be higher. At 4,161 cc (8 cylinders), 2007 Audi RS4 is equipped with a bigger engine. In terms of performance, 2007 Audi RS4 (420 HP @ 8205 RPM) has 117 more horse power than 2009 Infiniti M. (303 HP @ 6800 RPM). In normal driving conditions, 2007 Audi RS4 should accelerate faster than 2009 Infiniti M. With that said, vehicle weight also plays an important factor in acceleration. 2009 Infiniti M weights approximately 19 kg more than 2007 Audi RS4.
Because 2007 Audi RS4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Infiniti M. In wet, icy, snow, or gravel driving conditions, 2007 Audi RS4 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, 2007 Audi RS4 (430 Nm @ 5500 RPM) has 75 more torque (in Nm) than 2009 Infiniti M. (355 Nm @ 4800 RPM). This means 2007 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Infiniti M.
Compare all specifications:
| 2007 Audi RS4 | 2009 Infiniti M | |
| Make | Audi | Infiniti |
| Model | RS4 | M |
| Year Released | 2007 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 3496 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 420 HP | 303 HP |
| Engine RPM | 8205 RPM | 6800 RPM |
| Torque | 430 Nm | 355 Nm |
| Torque RPM | 5500 RPM | 4800 RPM |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1700 kg | 1719 kg |
| Vehicle Width | 1820 mm | 1810 mm |
