2009 Audi A5 vs. 2003 Infiniti M
To start off, 2009 Audi A5 is newer by 6 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, 2003 Infiniti M (340 HP @ 6400 RPM) has 75 more horse power than 2009 Audi A5. (265 HP @ 6500 RPM) In normal driving conditions, 2003 Infiniti M should accelerate faster than 2009 Audi A5. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti M weights approximately 852 kg more than 2009 Audi A5. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A5 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Infiniti M. In wet, icy, snow, or gravel driving conditions, 2009 Audi A5 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, 2003 Infiniti M (451 Nm @ 4000 RPM) has 121 more torque (in Nm) than 2009 Audi A5. (330 Nm @ 3250 RPM). This means 2003 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A5.
Compare all specifications:
| 2009 Audi A5 | 2003 Infiniti M | |
| Make | Audi | Infiniti |
| Model | A5 | M |
| Year Released | 2009 | 2003 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3197 cc | 4494 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 265 HP | 340 HP |
| Engine RPM | 6500 RPM | 6400 RPM |
| Torque | 330 Nm | 451 Nm |
| Torque RPM | 3250 RPM | 4000 RPM |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 895 kg | 1747 kg |
| Vehicle Length | 4630 mm | 5020 mm |
| Vehicle Width | 1990 mm | 1780 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2760 mm | 2810 mm |
| Fuel Tank Capacity | 64 L | 79 L |
