2003 BMW 325 vs. 2008 Daihatsu Sirion
To start off, 2008 Daihatsu Sirion is newer by 5 year(s). Which means there will be less support and parts availability for 2003 BMW 325. In addition, the cost of maintenance, including insurance, on 2003 BMW 325 would be higher. At 2,494 cc (6 cylinders), 2003 BMW 325 is equipped with a bigger engine. In terms of performance, 2003 BMW 325 (192 HP @ 6000 RPM) has 135 more horse power than 2008 Daihatsu Sirion. (57 HP @ 6000 RPM). In normal driving conditions, 2003 BMW 325 should accelerate faster than 2008 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 325 weights approximately 590 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.
Let's talk about torque, 2003 BMW 325 (245 Nm @ 3500 RPM) has 157 more torque (in Nm) than 2008 Daihatsu Sirion. (88 Nm @ 3600 RPM). This means 2003 BMW 325 will have an easier job in driving up hills or pulling heavy equipment than 2008 Daihatsu Sirion.
Compare all specifications:
| 2003 BMW 325 | 2008 Daihatsu Sirion | |
| Make | BMW | Daihatsu |
| Model | 325 | Sirion |
| Year Released | 2003 | 2008 |
| Body Type | Hatchback | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 989 cc |
| Engine Cylinders | 6 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 192 HP | 57 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 245 Nm | 88 Nm |
| Torque RPM | 3500 RPM | 3600 RPM |
| Engine Bore Size | 84.1 mm | 72 mm |
| Engine Stroke Size | 75 mm | 81 mm |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Acceleration 0-100mph | 7.1 seconds | 15.1 seconds |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1480 kg | 890 kg |
| Vehicle Length | 4270 mm | 3700 mm |
| Vehicle Width | 1760 mm | 1600 mm |
| Vehicle Height | 1410 mm | 1460 mm |
| Wheelbase Size | 2730 mm | 2350 mm |
| Fuel Consumption Overall | 8.9 L/100km | 5.4 L/100km |
| Fuel Tank Capacity | 63 L | 40 L |
