2003 Kia Opirus vs. 2011 Infiniti G37
To start off, 2011 Infiniti G37 is newer by 8 year(s). Which means there will be less support and parts availability for 2003 Kia Opirus. In addition, the cost of maintenance, including insurance, on 2003 Kia Opirus would be higher. At 3,700 cc (6 cylinders), 2011 Infiniti G37 is equipped with a bigger engine. In terms of performance, 2011 Infiniti G37 (330 HP @ 7000 RPM) has 134 more horse power than 2003 Kia Opirus. (196 HP @ 5500 RPM) In normal driving conditions, 2011 Infiniti G37 should accelerate faster than 2003 Kia Opirus. With that said, vehicle weight also plays an important factor in acceleration. 2003 Kia Opirus weights approximately 112 kg more than 2011 Infiniti G37.
Because 2011 Infiniti G37 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 2011 Infiniti G37. However, in wet, icy, snow, or gravel driving conditions, 2003 Kia Opirus, 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, 2011 Infiniti G37 (366 Nm @ 5200 RPM) has 71 more torque (in Nm) than 2003 Kia Opirus. (295 Nm @ 3500 RPM). This means 2011 Infiniti G37 will have an easier job in driving up hills or pulling heavy equipment than 2003 Kia Opirus.
Compare all specifications:
| 2003 Kia Opirus | 2011 Infiniti G37 | |
| Make | Kia | Infiniti |
| Model | Opirus | G37 |
| Year Released | 2003 | 2011 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3497 cc | 3700 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 196 HP | 330 HP |
| Engine RPM | 5500 RPM | 7000 RPM |
| Torque | 295 Nm | 366 Nm |
| Torque RPM | 3500 RPM | 5200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1760 kg | 1648 kg |
| Vehicle Length | 4960 mm | 4651 mm |
| Vehicle Width | 1860 mm | 1824 mm |
| Vehicle Height | 1490 mm | 1392 mm |
| Wheelbase Size | 2810 mm | 2850 mm |
