2008 Audi A8 vs. 2006 Infiniti Q45
To start off, 2008 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 2006 Infiniti Q45 would be higher. At 4,494 cc (8 cylinders), 2006 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2006 Infiniti Q45 (340 HP @ 6400 RPM) has 123 more horse power than 2008 Audi A8. (217 HP @ 6300 RPM) In normal driving conditions, 2006 Infiniti Q45 should accelerate faster than 2008 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A8 weights approximately 350 kg more than 2006 Infiniti Q45.
Because 2006 Infiniti Q45 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2006 Infiniti Q45. However, in wet, icy, snow, or gravel driving conditions, 2008 Audi A8, being front wheel drive (FWD), will offer much better control with better grip. 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, 2006 Infiniti Q45 (452 Nm @ 4000 RPM) has 152 more torque (in Nm) than 2008 Audi A8. (300 Nm @ 8200 RPM). This means 2006 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A8. 2006 Infiniti Q45 has automatic transmission and 2008 Audi A8 has manual transmission. 2008 Audi A8 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Infiniti Q45 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Audi A8 | 2006 Infiniti Q45 | |
| Make | Audi | Infiniti |
| Model | A8 | Q45 |
| Year Released | 2008 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 4494 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 217 HP | 340 HP |
| Engine RPM | 6300 RPM | 6400 RPM |
| Torque | 300 Nm | 452 Nm |
| Torque RPM | 8200 RPM | 4000 RPM |
| Engine Bore Size | 82.5 mm | 93 mm |
| Engine Stroke Size | 92.8 mm | 82.7 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1670 kg | 1320 kg |
| Vehicle Length | 5190 mm | 5110 mm |
| Vehicle Width | 1900 mm | 1850 mm |
| Vehicle Height | 1460 mm | 1500 mm |
| Wheelbase Size | 3080 mm | 2880 mm |
| Fuel Consumption Overall | 9.6 L/100km | 15.8 L/100km |
| Fuel Tank Capacity | 90 L | 81 L |
