2007 Daihatsu Sirion vs. 2009 BMW 525
To start off, 2009 BMW 525 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Daihatsu Sirion. In addition, the cost of maintenance, including insurance, on 2007 Daihatsu Sirion would be higher. At 2,497 cc (6 cylinders), 2009 BMW 525 is equipped with a bigger engine. In terms of performance, 2009 BMW 525 (215 HP @ 6500 RPM) has 129 more horse power than 2007 Daihatsu Sirion. (86 HP @ 6000 RPM) In normal driving conditions, 2009 BMW 525 should accelerate faster than 2007 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 525 weights approximately 640 kg more than 2007 Daihatsu Sirion. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 BMW 525 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Daihatsu Sirion. In wet, icy, snow, or gravel driving conditions, 2009 BMW 525 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 BMW 525 (250 Nm @ 2750 RPM) has 130 more torque (in Nm) than 2007 Daihatsu Sirion. (120 Nm @ 3200 RPM). This means 2009 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 2007 Daihatsu Sirion. 2009 BMW 525 has automatic transmission and 2007 Daihatsu Sirion has manual transmission. 2007 Daihatsu Sirion will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 BMW 525 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Daihatsu Sirion | 2009 BMW 525 | |
| Make | Daihatsu | BMW |
| Model | Sirion | 525 |
| Year Released | 2007 | 2009 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1298 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 86 HP | 215 HP |
| Engine RPM | 6000 RPM | 6500 RPM |
| Torque | 120 Nm | 250 Nm |
| Torque RPM | 3200 RPM | 2750 RPM |
| Engine Bore Size | 72 mm | 78.8 mm |
| Engine Stroke Size | 79.7 mm | 82 mm |
| Engine Compression Ratio | 10.0:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 180 km/hour | 237 km/hour |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 925 kg | 1565 kg |
| Vehicle Length | 3610 mm | 4850 mm |
| Vehicle Width | 1670 mm | 1850 mm |
| Vehicle Height | 1560 mm | 1470 mm |
| Wheelbase Size | 2440 mm | 2890 mm |
| Fuel Consumption Overall | 5 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 40 L | 70 L |
