2004 Audi A4 vs. 2001 Infiniti Q45
To start off, 2004 Audi A4 is newer by 3 year(s). Which means there will be less support and parts availability for 2001 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 2001 Infiniti Q45 would be higher. At 4,129 cc (8 cylinders), 2001 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2001 Infiniti Q45 (265 HP @ 5600 RPM) has 96 more horse power than 2004 Audi A4. (169 HP @ 6300 RPM) In normal driving conditions, 2001 Infiniti Q45 should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2001 Infiniti Q45 weights approximately 195 kg more than 2004 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2001 Infiniti Q45. In wet, icy, snow, or gravel driving conditions, 2004 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, 2001 Infiniti Q45 (378 Nm @ 4000 RPM) has 153 more torque (in Nm) than 2004 Audi A4. (225 Nm @ 1950 RPM). This means 2001 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4. 2001 Infiniti Q45 has automatic transmission and 2004 Audi A4 has manual transmission. 2004 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2001 Infiniti Q45 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Audi A4 | 2001 Infiniti Q45 | |
| Make | Audi | Infiniti |
| Model | A4 | Q45 |
| Year Released | 2004 | 2001 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 4129 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 169 HP | 265 HP |
| Engine RPM | 6300 RPM | 5600 RPM |
| Torque | 225 Nm | 378 Nm |
| Torque RPM | 1950 RPM | 4000 RPM |
| Engine Bore Size | 81 mm | 93 mm |
| Engine Stroke Size | 86.4 mm | 76 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1565 kg | 1760 kg |
| Vehicle Length | 4580 mm | 5070 mm |
| Vehicle Width | 1770 mm | 1830 mm |
| Vehicle Height | 1400 mm | 1450 mm |
| Wheelbase Size | 2660 mm | 2840 mm |
| Fuel Tank Capacity | 66 L | 60 L |
