2005 Audi A8 vs. 2002 Infiniti Q45
To start off, 2005 Audi A8 is newer by 3 year(s). Which means there will be less support and parts availability for 2002 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 2002 Infiniti Q45 would be higher. At 5,998 cc, 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (444 HP @ 6500 RPM) has 156 more horse power than 2002 Infiniti Q45. (288 HP @ 6000 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 2002 Infiniti Q45. With that said, vehicle weight also plays an important factor in acceleration. 2002 Infiniti Q45 weights approximately 870 kg more than 2005 Audi A8.
Because 2005 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2002 Infiniti Q45. In wet, icy, snow, or gravel driving conditions, 2005 Audi A8 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, 2005 Audi A8 (560 Nm @ 4000 RPM) has 164 more torque (in Nm) than 2002 Infiniti Q45. (396 Nm @ 4000 RPM). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2002 Infiniti Q45.
Compare all specifications:
| 2005 Audi A8 | 2002 Infiniti Q45 | |
| Make | Audi | Infiniti |
| Model | A8 | Q45 |
| Year Released | 2005 | 2002 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 4493 cc |
| Engine Type | W | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 288 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 560 Nm | 396 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 900 kg | 1770 kg |
| Vehicle Length | 5190 mm | 5080 mm |
| Vehicle Width | 1900 mm | 1850 mm |
| Vehicle Height | 1460 mm | 1500 mm |
| Wheelbase Size | 3080 mm | 2880 mm |
| Fuel Tank Capacity | 90 L | 60 L |
