2003 Infiniti Q45 vs. 2007 Toyota RunX
To start off, 2007 Toyota RunX is newer by 4 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 232 more horse power than 2007 Toyota RunX. (108 HP @ 6000 RPM). In normal driving conditions, 2003 Infiniti Q45 should accelerate faster than 2007 Toyota RunX. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti Q45 weights approximately 691 kg more than 2007 Toyota RunX. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Infiniti Q45 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2003 Infiniti Q45. However, in wet, icy, snow, or gravel driving conditions, 2007 Toyota RunX, being front wheel drive (FWD), will offer much better control with better grip. 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 305 more torque (in Nm) than 2007 Toyota RunX. (146 Nm @ 4400 RPM). This means 2003 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2007 Toyota RunX. 2003 Infiniti Q45 has automatic transmission and 2007 Toyota RunX has manual transmission. 2007 Toyota RunX will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Infiniti Q45 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Infiniti Q45 | 2007 Toyota RunX | |
| Make | Infiniti | Toyota |
| Model | Q45 | RunX |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4494 cc | 1598 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 340 HP | 108 HP |
| Engine RPM | 6400 RPM | 6000 RPM |
| Torque | 451 Nm | 146 Nm |
| Torque RPM | 4000 RPM | 4400 RPM |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1804 kg | 1113 kg |
| Vehicle Length | 5080 mm | 4180 mm |
| Vehicle Width | 1850 mm | 1700 mm |
| Vehicle Height | 1500 mm | 1480 mm |
| Wheelbase Size | 2880 mm | 2610 mm |
| Fuel Tank Capacity | 81 L | 60 L |
