2007 Daihatsu Sirion vs. 2003 Daihatsu Copen
To start off, 2007 Daihatsu Sirion is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Daihatsu Copen. In addition, the cost of maintenance, including insurance, on 2003 Daihatsu Copen would be higher. At 1,298 cc (4 cylinders), 2007 Daihatsu Sirion is equipped with a bigger engine. In terms of performance, 2007 Daihatsu Sirion (86 HP @ 6000 RPM) has 19 more horse power than 2003 Daihatsu Copen. (67 HP @ 6000 RPM). In normal driving conditions, 2007 Daihatsu Sirion should accelerate faster than 2003 Daihatsu Copen. With that said, vehicle weight also plays an important factor in acceleration. 2007 Daihatsu Sirion weights approximately 75 kg more than 2003 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, 2007 Daihatsu Sirion (120 Nm @ 3200 RPM) has 18 more torque (in Nm) than 2003 Daihatsu Copen. (102 Nm @ 3200 RPM). This means 2007 Daihatsu Sirion will have an easier job in driving up hills or pulling heavy equipment than 2003 Daihatsu Copen.
Compare all specifications:
| 2007 Daihatsu Sirion | 2003 Daihatsu Copen | |
| Make | Daihatsu | Daihatsu |
| Model | Sirion | Copen |
| Year Released | 2007 | 2003 |
| Body Type | Hatchback | Roadster |
| Engine Position | Front | Front |
| Engine Size | 1298 cc | 657 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 86 HP | 67 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 120 Nm | 102 Nm |
| Torque RPM | 3200 RPM | 3200 RPM |
| Engine Bore Size | 72 mm | 61 mm |
| Engine Stroke Size | 79.7 mm | 56.4 mm |
| Engine Compression Ratio | 10.0:1 | 8.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 925 kg | 850 kg |
| Vehicle Length | 3610 mm | 3400 mm |
| Vehicle Width | 1670 mm | 1480 mm |
| Vehicle Height | 1560 mm | 1250 mm |
| Wheelbase Size | 2440 mm | 2240 mm |
| Fuel Tank Capacity | 40 L | 43 L |
