2009 Audi S4 vs. 2009 Infiniti M
To start off, both 2009 Audi S4 and 2009 Infiniti M were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,493 cc (8 cylinders), 2009 Infiniti M is equipped with a bigger engine. In terms of performance, 2009 Audi S4 (340 HP @ 6800 RPM) has 15 more horse power than 2009 Infiniti M. (325 HP @ 6400 RPM). In normal driving conditions, 2009 Audi S4 should accelerate faster than 2009 Infiniti M. With that said, vehicle weight also plays an important factor in acceleration. 2009 Infiniti M weights approximately 789 kg more than 2009 Audi S4.
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 (456 Nm @ 4000 RPM) has 46 more torque (in Nm) than 2009 Audi S4. (410 Nm @ 3500 RPM). This means 2009 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi S4.
Compare all specifications:
| 2009 Audi S4 | 2009 Infiniti M | |
| Make | Audi | Infiniti |
| Model | S4 | M |
| Year Released | 2009 | 2009 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 4493 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 325 HP |
| Engine RPM | 6800 RPM | 6400 RPM |
| Torque | 410 Nm | 456 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 930 kg | 1719 kg |
| Vehicle Length | 4580 mm | 4940 mm |
| Vehicle Width | 1780 mm | 1810 mm |
| Vehicle Height | 1400 mm | 1530 mm |
| Wheelbase Size | 2660 mm | 2910 mm |
| Fuel Consumption | 11.2 L/100km | 11.8 L/100km |
| Fuel Consumption City | 16.8 L/100km | 16.8 L/100km |
| Fuel Consumption Overall | 14.7 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 63 L | 76 L |
