2005 Audi A8 vs. 1989 Infiniti Q45
To start off, 2005 Audi A8 is newer by 16 year(s). Which means there will be less support and parts availability for 1989 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 1989 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 @ 6200 RPM) has 167 more horse power than 1989 Infiniti Q45. (277 HP @ 6000 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 1989 Infiniti Q45. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 245 kg more than 1989 Infiniti Q45. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 1989 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 (580 Nm @ 4000 RPM) has 184 more torque (in Nm) than 1989 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 1989 Infiniti Q45.
Compare all specifications:
| 2005 Audi A8 | 1989 Infiniti Q45 | |
| Make | Audi | Infiniti |
| Model | A8 | Q45 |
| Year Released | 2005 | 1989 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 4494 cc |
| Engine Type | W | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 277 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 580 Nm | 396 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 93.1 mm |
| Engine Stroke Size | 90.2 mm | 82.7 mm |
| Engine Compression Ratio | 11.0:1 | 10.2:1 |
| 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 | 1995 kg | 1750 kg |
| Vehicle Length | 5070 mm | 5080 mm |
| Vehicle Width | 1900 mm | 1830 mm |
| Vehicle Height | 1450 mm | 1440 mm |
| Wheelbase Size | 3080 mm | 2890 mm |
| Fuel Tank Capacity | 90 L | 72 L |
