1998 Infiniti Q45 vs. 2009 Infiniti EX
To start off, 2009 Infiniti EX is newer by 11 year(s). Which means there will be less support and parts availability for 1998 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 1998 Infiniti Q45 would be higher. At 4,130 cc (8 cylinders), 1998 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2009 Infiniti EX (317 HP @ 7000 RPM) has 52 more horse power than 1998 Infiniti Q45. (265 HP @ 5600 RPM) In normal driving conditions, 2009 Infiniti EX should accelerate faster than 1998 Infiniti Q45. With that said, vehicle weight also plays an important factor in acceleration. 1998 Infiniti Q45 weights approximately 41 kg more than 2009 Infiniti EX.
Because 2009 Infiniti EX is four wheel drive (4WD), it will have significant more traction and grip than 1998 Infiniti Q45. In wet, icy, snow, or gravel driving conditions, 2009 Infiniti EX 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, 1998 Infiniti Q45 (378 Nm @ 4000 RPM) has 18 more torque (in Nm) than 2009 Infiniti EX. (360 Nm @ 5200 RPM). This means 1998 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2009 Infiniti EX.
Compare all specifications:
| 1998 Infiniti Q45 | 2009 Infiniti EX | |
| Make | Infiniti | Infiniti |
| Model | Q45 | EX |
| Year Released | 1998 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4130 cc | 3696 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 265 HP | 317 HP |
| Engine RPM | 5600 RPM | 7000 RPM |
| Torque | 378 Nm | 360 Nm |
| Torque RPM | 4000 RPM | 5200 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1760 kg | 1719 kg |
| Vehicle Length | 5070 mm | 4640 mm |
| Vehicle Width | 1830 mm | 1810 mm |
| Vehicle Height | 1450 mm | 1600 mm |
| Wheelbase Size | 2840 mm | 2810 mm |
| Fuel Tank Capacity | 60 L | 82 L |
