2009 Audi Q7 vs. 2003 Infiniti Q45
To start off, 2009 Audi Q7 is newer by 6 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, 2009 Audi Q7 (345 HP @ 6800 RPM) has 5 more horse power than 2003 Infiniti Q45. (340 HP @ 6400 RPM). In normal driving conditions, 2009 Audi Q7 should accelerate faster than 2003 Infiniti Q45. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi Q7 weights approximately 440 kg more than 2003 Infiniti Q45. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi Q7 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, 2009 Audi Q7 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 11 more torque (in Nm) than 2009 Audi Q7. (440 Nm @ 3500 RPM). This means 2003 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi Q7.
Compare all specifications:
2009 Audi Q7 | 2003 Infiniti Q45 | |
Make | Audi | Infiniti |
Model | Q7 | Q45 |
Year Released | 2009 | 2003 |
Body Type | SUV | Sedan |
Engine Position | Front | Front |
Engine Size | 4163 cc | 4494 cc |
Engine Cylinders | 8 cylinders | 8 cylinders |
Engine Type | V | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 345 HP | 340 HP |
Engine RPM | 6800 RPM | 6400 RPM |
Torque | 440 Nm | 451 Nm |
Torque RPM | 3500 RPM | 4000 RPM |
Engine Compression Ratio | 12.5:1 | 10.5:1 |
Drive Type | 4WD | Rear |
Transmission Type | Automatic | Automatic |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 5 doors | 4 doors |
Vehicle Weight | 2244 kg | 1804 kg |
Vehicle Length | 5090 mm | 5080 mm |
Vehicle Width | 1990 mm | 1850 mm |
Vehicle Height | 1740 mm | 1500 mm |
Wheelbase Size | 3010 mm | 2880 mm |
Fuel Tank Capacity | 100 L | 81 L |