2006 Audi S4 vs. 2003 Infiniti M
To start off, 2006 Audi S4 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Infiniti M. In addition, the cost of maintenance, including insurance, on 2003 Infiniti M would be higher. At 4,494 cc (8 cylinders), 2003 Infiniti M is equipped with a bigger engine. In terms of performance, both vehicles can yield 340 horse power. So under normal driving conditions, the acceleration of both vehicles should be relatively similar. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti M weights approximately 237 kg more than 2006 Audi S4.
Because 2003 Infiniti M is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2003 Infiniti M. However, in wet, icy, snow, or gravel driving conditions, 2006 Audi S4, being front wheel drive (FWD), will offer much better control with better grip. 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, 2003 Infiniti M (451 Nm @ 4000 RPM) has 41 more torque (in Nm) than 2006 Audi S4. (410 Nm @ 3500 RPM). This means 2003 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi S4.
Compare all specifications:
| 2006 Audi S4 | 2003 Infiniti M | |
| Make | Audi | Infiniti |
| Model | S4 | M |
| Year Released | 2006 | 2003 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4494 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 340 HP |
| Engine RPM | 7000 RPM | 6400 RPM |
| Torque | 410 Nm | 451 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1510 kg | 1747 kg |
| Vehicle Length | 4590 mm | 5020 mm |
| Vehicle Width | 1790 mm | 1780 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2810 mm |
| Fuel Tank Capacity | 63 L | 79 L |
