2008 Daihatsu Sirion vs. 2009 Infiniti G37
To start off, 2009 Infiniti G37 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Daihatsu Sirion. In addition, the cost of maintenance, including insurance, on 2008 Daihatsu Sirion would be higher. At 3,696 cc (6 cylinders), 2009 Infiniti G37 is equipped with a bigger engine. In terms of performance, 2009 Infiniti G37 (329 HP @ 7000 RPM) has 260 more horse power than 2008 Daihatsu Sirion. (69 HP @ 6000 RPM) In normal driving conditions, 2009 Infiniti G37 should accelerate faster than 2008 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2009 Infiniti G37 weights approximately 430 kg more than 2008 Daihatsu Sirion. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Infiniti G37 is four wheel drive (4WD), it will have significant more traction and grip than 2008 Daihatsu Sirion. In wet, icy, snow, or gravel driving conditions, 2009 Infiniti G37 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, 2009 Infiniti G37 (365 Nm @ 5200 RPM) has 271 more torque (in Nm) than 2008 Daihatsu Sirion. (94 Nm @ 3600 RPM). This means 2009 Infiniti G37 will have an easier job in driving up hills or pulling heavy equipment than 2008 Daihatsu Sirion. 2009 Infiniti G37 has automatic transmission and 2008 Daihatsu Sirion has manual transmission. 2008 Daihatsu Sirion will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Infiniti G37 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Daihatsu Sirion | 2009 Infiniti G37 | |
| Make | Daihatsu | Infiniti |
| Model | Sirion | G37 |
| Year Released | 2008 | 2009 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 998 cc | 3696 cc |
| Engine Cylinders | 3 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 69 HP | 329 HP |
| Engine RPM | 6000 RPM | 7000 RPM |
| Torque | 94 Nm | 365 Nm |
| Torque RPM | 3600 RPM | 5200 RPM |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 890 kg | 1320 kg |
| Vehicle Length | 3610 mm | 4760 mm |
| Vehicle Width | 1670 mm | 1780 mm |
| Vehicle Height | 1560 mm | 1470 mm |
| Wheelbase Size | 2440 mm | 2860 mm |
| Fuel Consumption Overall | 5 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 40 L | 76 L |
