2005 Daihatsu Copen vs. 2003 Fiat Siena
To start off, 2005 Daihatsu Copen is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2003 Fiat Siena would be higher. At 1,301 cc (4 cylinders), 2003 Fiat Siena is equipped with a bigger engine. In terms of performance, 2005 Daihatsu Copen (67 HP @ 6000 RPM) has 8 more horse power than 2003 Fiat Siena. (59 HP @ 5200 RPM). In normal driving conditions, 2005 Daihatsu Copen should accelerate faster than 2003 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2003 Fiat Siena weights approximately 135 kg more than 2005 Daihatsu Copen.
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, 2003 Fiat Siena (103 Nm @ 2500 RPM) has 1 more torque (in Nm) than 2005 Daihatsu Copen. (102 Nm @ 3200 RPM). This means 2003 Fiat Siena will have an easier job in driving up hills or pulling heavy equipment than 2005 Daihatsu Copen.
Compare all specifications:
| 2005 Daihatsu Copen | 2003 Fiat Siena | |
| Make | Daihatsu | Fiat |
| Model | Copen | Siena |
| Year Released | 2005 | 2003 |
| Body Type | Roadster | Sedan |
| Engine Position | Front | Front |
| Engine Size | 657 cc | 1301 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 67 HP | 59 HP |
| Engine RPM | 6000 RPM | 5200 RPM |
| Torque | 102 Nm | 103 Nm |
| Torque RPM | 3200 RPM | 2500 RPM |
| Engine Bore Size | 61 mm | 70.8 mm |
| Engine Stroke Size | 56.4 mm | 78.9 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 905 kg | 1040 kg |
| Vehicle Length | 3400 mm | 4110 mm |
| Vehicle Width | 1480 mm | 1630 mm |
| Vehicle Height | 1250 mm | 1470 mm |
| Wheelbase Size | 2340 mm | 2380 mm |
