2005 Infiniti Q45 vs. 2007 BMW 525
To start off, 2007 BMW 525 is newer by 2 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 125 more horse power than 2007 BMW 525. (215 HP). In normal driving conditions, 2005 Infiniti Q45 should accelerate faster than 2007 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2005 Infiniti Q45 weights approximately 272 kg more than 2007 BMW 525. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW 525 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Infiniti Q45. In wet, icy, snow, or gravel driving conditions, 2007 BMW 525 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 203 more torque (in Nm) than 2007 BMW 525. (250 Nm). This means 2005 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 525.
Compare all specifications:
| 2005 Infiniti Q45 | 2007 BMW 525 | |
| Make | Infiniti | BMW |
| Model | Q45 | 525 |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4490 cc | 2497 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 340 HP | 215 HP |
| Torque | 453 Nm | 250 Nm |
| Engine Bore Size | 93 mm | 78.8 mm |
| Engine Stroke Size | 83 mm | 82 mm |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1837 kg | 1565 kg |
| Vehicle Length | 5080 mm | 4850 mm |
| Vehicle Width | 1850 mm | 1850 mm |
| Vehicle Height | 1500 mm | 1470 mm |
| Wheelbase Size | 2880 mm | 2890 mm |
| Fuel Consumption Highway | 9.4 L/100km | 7.2 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 81 L | 70 L |
