2005 Infiniti Q45 vs. 2010 Audi A4
To start off, 2010 Audi A4 is newer by 5 year(s). Which means there will be less support and parts availability for 2005 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 2005 Infiniti Q45 would be higher. At 4,490 cc (8 cylinders), 2005 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2005 Infiniti Q45 (340 HP) has 129 more horse power than 2010 Audi A4. (211 HP). In normal driving conditions, 2005 Infiniti Q45 should accelerate faster than 2010 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Infiniti Q45 weights approximately 192 kg more than 2010 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2010 Audi A4 is all wheel drive (AWD), it will have significant more traction and grip than 2005 Infiniti Q45. In wet, icy, snow, or gravel driving conditions, 2010 Audi A4 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 Infiniti Q45 (453 Nm) has 104 more torque (in Nm) than 2010 Audi A4. (349 Nm). This means 2005 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2010 Audi A4. 2005 Infiniti Q45 has automatic transmission and 2010 Audi A4 has manual transmission. 2010 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Infiniti Q45 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Infiniti Q45 | 2010 Audi A4 | |
| Make | Infiniti | Audi |
| Model | Q45 | A4 |
| Year Released | 2005 | 2010 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4490 cc | 2000 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 340 HP | 211 HP |
| Torque | 453 Nm | 349 Nm |
| Drive Type | Rear | AWD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1837 kg | 1645 kg |
| Vehicle Length | 5080 mm | 4704 mm |
| Vehicle Width | 1850 mm | 1826 mm |
| Vehicle Height | 1500 mm | 1427 mm |
| Wheelbase Size | 2880 mm | 2809 mm |
| Fuel Consumption Highway | 9.4 L/100km | 7.8 L/100km |
| Fuel Consumption City | 13.8 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 81 L | 64 L |
