2005 BMW 320 vs. 2009 Daihatsu Sirion
To start off, 2009 Daihatsu Sirion is newer by 4 year(s). Which means there will be less support and parts availability for 2005 BMW 320. In addition, the cost of maintenance, including insurance, on 2005 BMW 320 would be higher. At 2,171 cc (6 cylinders), 2005 BMW 320 is equipped with a bigger engine. In terms of performance, 2005 BMW 320 (168 HP @ 6000 RPM) has 67 more horse power than 2009 Daihatsu Sirion. (101 HP @ 3600 RPM). In normal driving conditions, 2005 BMW 320 should accelerate faster than 2009 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 320 weights approximately 608 kg more than 2009 Daihatsu Sirion. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 BMW 320 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 2005 BMW 320. However, in wet, icy, snow, or gravel driving conditions, 2009 Daihatsu Sirion, 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, 2005 BMW 320 (210 Nm @ 3500 RPM) has 70 more torque (in Nm) than 2009 Daihatsu Sirion. (140 Nm @ 4600 RPM). This means 2005 BMW 320 will have an easier job in driving up hills or pulling heavy equipment than 2009 Daihatsu Sirion.
Compare all specifications:
| 2005 BMW 320 | 2009 Daihatsu Sirion | |
| Make | BMW | Daihatsu |
| Model | 320 | Sirion |
| Year Released | 2005 | 2009 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 1298 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 168 HP | 101 HP |
| Engine RPM | 6000 RPM | 3600 RPM |
| Torque | 210 Nm | 140 Nm |
| Torque RPM | 3500 RPM | 4600 RPM |
| Engine Bore Size | 80 mm | 72 mm |
| Engine Stroke Size | 72 mm | 79.7 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1550 kg | 942 kg |
| Vehicle Length | 4490 mm | 3610 mm |
| Vehicle Width | 1760 mm | 1560 mm |
| Vehicle Height | 1380 mm | 1670 mm |
| Wheelbase Size | 2730 mm | 2440 mm |
| Fuel Consumption Overall | 9.4 L/100km | 6 L/100km |
| Fuel Tank Capacity | 63 L | 40 L |
