2005 Audi S4 vs. 2005 Infiniti Q45
To start off, both 2005 Audi S4 and 2005 Infiniti Q45 were released in the same year (2005). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,490 cc (8 cylinders), 2005 Infiniti Q45 is equipped with a bigger engine. In terms of performance, both vehicles can yield 340 horse power. So under normal driving conditions, the acceleration of both vehicles should be relatively similar. With that said, vehicle weight also plays an important factor in acceleration. 2005 Infiniti Q45 weights approximately 52 kg more than 2005 Audi S4.
Let's talk about torque, 2005 Infiniti Q45 (453 Nm) has 43 more torque (in Nm) than 2005 Audi S4. (410 Nm). This means 2005 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S4.
Compare all specifications:
| 2005 Audi S4 | 2005 Infiniti Q45 | |
| Make | Audi | Infiniti |
| Model | S4 | Q45 |
| Year Released | 2005 | 2005 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4490 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 340 HP |
| Torque | 410 Nm | 453 Nm |
| Engine Bore Size | 85 mm | 93 mm |
| Engine Stroke Size | 93 mm | 83 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1785 kg | 1837 kg |
| Vehicle Length | 4550 mm | 5080 mm |
| Vehicle Width | 1770 mm | 1850 mm |
| Vehicle Height | 1430 mm | 1500 mm |
| Wheelbase Size | 2470 mm | 2880 mm |
| Fuel Consumption Highway | 11.2 L/100km | 9.4 L/100km |
| Fuel Consumption City | 15.7 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 13.8 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 66 L | 81 L |
