2003 Audi A8 vs. 2009 Infiniti QX56
To start off, 2009 Infiniti QX56 is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Audi A8. In addition, the cost of maintenance, including insurance, on 2003 Audi A8 would be higher. At 5,552 cc (8 cylinders), 2009 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2009 Infiniti QX56 (320 HP @ 5200 RPM) has 103 more horse power than 2003 Audi A8. (217 HP @ 6300 RPM) In normal driving conditions, 2009 Infiniti QX56 should accelerate faster than 2003 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi A8 weights approximately 350 kg more than 2009 Infiniti QX56.
Because 2009 Infiniti QX56 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Audi A8. In wet, icy, snow, or gravel driving conditions, 2009 Infiniti QX56 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, 2009 Infiniti QX56 (533 Nm @ 3400 RPM) has 233 more torque (in Nm) than 2003 Audi A8. (300 Nm @ 8200 RPM). This means 2009 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A8. 2009 Infiniti QX56 has automatic transmission and 2003 Audi A8 has manual transmission. 2003 Audi A8 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Infiniti QX56 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Audi A8 | 2009 Infiniti QX56 | |
| Make | Audi | Infiniti |
| Model | A8 | QX56 |
| Year Released | 2003 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 5552 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 217 HP | 320 HP |
| Engine RPM | 6300 RPM | 5200 RPM |
| Torque | 300 Nm | 533 Nm |
| Torque RPM | 8200 RPM | 3400 RPM |
| Engine Compression Ratio | 11.0:1 | 10.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1670 kg | 1320 kg |
| Vehicle Length | 5060 mm | 5260 mm |
| Vehicle Width | 1900 mm | 2010 mm |
| Vehicle Height | 1450 mm | 2010 mm |
| Wheelbase Size | 2950 mm | 3140 mm |
| Fuel Consumption Overall | 9.6 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 70 L | 106 L |
