2008 Audi S4 vs. 2006 Infiniti Q45
To start off, 2008 Audi S4 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, 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. 2008 Audi S4 weights approximately 435 kg more than 2006 Infiniti Q45.
Because 2008 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Infiniti Q45. In wet, icy, snow, or gravel driving conditions, 2008 Audi S4 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, 2006 Infiniti Q45 (452 Nm @ 4000 RPM) has 42 more torque (in Nm) than 2008 Audi S4. (410 Nm @ 3500 RPM). This means 2006 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi S4.
Compare all specifications:
| 2008 Audi S4 | 2006 Infiniti Q45 | |
| Make | Audi | Infiniti |
| Model | S4 | Q45 |
| Year Released | 2008 | 2006 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4494 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 340 HP |
| Engine RPM | 7000 RPM | 6400 RPM |
| Torque | 410 Nm | 452 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1755 kg | 1320 kg |
| Vehicle Length | 4590 mm | 5110 mm |
| Vehicle Width | 1730 mm | 1850 mm |
| Vehicle Height | 1430 mm | 1500 mm |
| Wheelbase Size | 2650 mm | 2880 mm |
| Fuel Consumption Overall | 12.3 L/100km | 15.8 L/100km |
| Fuel Tank Capacity | 63 L | 81 L |
