2004 Daihatsu Copen vs. 2008 Daihatsu Sirion
To start off, 2008 Daihatsu Sirion is newer by 4 year(s). Which means there will be less support and parts availability for 2004 Daihatsu Copen. In addition, the cost of maintenance, including insurance, on 2004 Daihatsu Copen would be higher. At 1,298 cc (4 cylinders), 2008 Daihatsu Sirion is equipped with a bigger engine. In terms of performance, 2008 Daihatsu Sirion (86 HP @ 6000 RPM) has 19 more horse power than 2004 Daihatsu Copen. (67 HP @ 6000 RPM) In normal driving conditions, 2008 Daihatsu Sirion should accelerate faster than 2004 Daihatsu Copen. With that said, vehicle weight also plays an important factor in acceleration. 2008 Daihatsu Sirion weights approximately 90 kg more than 2004 Daihatsu Copen. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2008 Daihatsu Sirion (120 Nm @ 3200 RPM) has 20 more torque (in Nm) than 2004 Daihatsu Copen. (100 Nm @ 3200 RPM). This means 2008 Daihatsu Sirion will have an easier job in driving up hills or pulling heavy equipment than 2004 Daihatsu Copen. 2008 Daihatsu Sirion has automatic transmission and 2004 Daihatsu Copen has manual transmission. 2004 Daihatsu Copen will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Daihatsu Sirion will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Daihatsu Copen | 2008 Daihatsu Sirion | |
| Make | Daihatsu | Daihatsu |
| Model | Copen | Sirion |
| Year Released | 2004 | 2008 |
| Body Type | Roadster | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 659 cc | 1298 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 67 HP | 86 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 100 Nm | 120 Nm |
| Torque RPM | 3200 RPM | 3200 RPM |
| Engine Bore Size | 61 mm | 72 mm |
| Engine Stroke Size | 56.4 mm | 79.7 mm |
| Engine Compression Ratio | 8.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 170 km/hour | 175 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 850 kg | 940 kg |
| Vehicle Length | 3400 mm | 3610 mm |
| Vehicle Width | 1480 mm | 1560 mm |
| Vehicle Height | 1250 mm | 1670 mm |
| Wheelbase Size | 2380 mm | 2440 mm |
| Fuel Consumption Overall | 4.8 L/100km | 5 L/100km |
| Fuel Tank Capacity | 43 L | 40 L |
