2008 Acura MDX vs. 2003 Infiniti Q45
To start off, 2008 Acura MDX is newer by 5 year(s). Which means there will be less support and parts availability for 2003 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 2003 Infiniti Q45 would be higher. At 4,494 cc (8 cylinders), 2003 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2003 Infiniti Q45 (340 HP @ 6400 RPM) has 40 more horse power than 2008 Acura MDX. (300 HP @ 6000 RPM) In normal driving conditions, 2003 Infiniti Q45 should accelerate faster than 2008 Acura MDX. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti Q45 weights approximately 354 kg more than 2008 Acura MDX. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Acura MDX is four wheel drive (4WD), it will have significant more traction and grip than 2003 Infiniti Q45. In wet, icy, snow, or gravel driving conditions, 2008 Acura MDX 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, 2003 Infiniti Q45 (451 Nm @ 4000 RPM) has 78 more torque (in Nm) than 2008 Acura MDX. (373 Nm @ 5000 RPM). This means 2003 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2008 Acura MDX.
Compare all specifications:
| 2008 Acura MDX | 2003 Infiniti Q45 | |
| Make | Acura | Infiniti |
| Model | MDX | Q45 |
| Year Released | 2008 | 2003 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3664 cc | 4494 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 300 HP | 340 HP |
| Engine RPM | 6000 RPM | 6400 RPM |
| Torque | 373 Nm | 451 Nm |
| Torque RPM | 5000 RPM | 4000 RPM |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1450 kg | 1804 kg |
| Vehicle Length | 4850 mm | 5080 mm |
| Vehicle Width | 2000 mm | 1850 mm |
| Vehicle Height | 1780 mm | 1500 mm |
| Wheelbase Size | 2760 mm | 2880 mm |
| Fuel Tank Capacity | 79 L | 81 L |
