2007 Audi A6 vs. 2003 Infiniti Q45
To start off, 2007 Audi A6 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 2003 Infiniti Q45 would be higher. At 4,494 cc (8 cylinders), 2003 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2003 Infiniti Q45 (340 HP @ 6400 RPM) has 85 more horse power than 2007 Audi A6. (255 HP @ 6500 RPM) In normal driving conditions, 2003 Infiniti Q45 should accelerate faster than 2007 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A6 weights approximately 76 kg more than 2003 Infiniti Q45.
Because 2007 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Infiniti Q45. In wet, icy, snow, or gravel driving conditions, 2007 Audi A6 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 Q45 (451 Nm @ 4000 RPM) has 121 more torque (in Nm) than 2007 Audi A6. (330 Nm @ 3250 RPM). This means 2003 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A6.
Compare all specifications:
| 2007 Audi A6 | 2003 Infiniti Q45 | |
| Make | Audi | Infiniti |
| Model | A6 | Q45 |
| Year Released | 2007 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 4494 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 340 HP |
| Engine RPM | 6500 RPM | 6400 RPM |
| Torque | 330 Nm | 451 Nm |
| Torque RPM | 3250 RPM | 4000 RPM |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1880 kg | 1804 kg |
| Vehicle Length | 4920 mm | 5080 mm |
| Vehicle Width | 2020 mm | 1850 mm |
| Vehicle Height | 1460 mm | 1500 mm |
| Wheelbase Size | 2850 mm | 2880 mm |
| Fuel Tank Capacity | 80 L | 81 L |
