2003 Daihatsu Copen vs. 2007 Opel Vectra
To start off, 2007 Opel Vectra 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 1,996 cc (4 cylinders), 2007 Opel Vectra is equipped with a bigger engine. In terms of performance, 2007 Opel Vectra (173 HP @ 5500 RPM) has 106 more horse power than 2003 Daihatsu Copen. (67 HP @ 6000 RPM) In normal driving conditions, 2007 Opel Vectra should accelerate faster than 2003 Daihatsu Copen. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Vectra weights approximately 620 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 Opel Vectra (265 Nm @ 2500 RPM) has 163 more torque (in Nm) than 2003 Daihatsu Copen. (102 Nm @ 3200 RPM). This means 2007 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2003 Daihatsu Copen.
Compare all specifications:
| 2003 Daihatsu Copen | 2007 Opel Vectra | |
| Make | Daihatsu | Opel |
| Model | Copen | Vectra |
| Year Released | 2003 | 2007 |
| Body Type | Roadster | Sedan |
| Engine Position | Front | Front |
| Engine Size | 657 cc | 1996 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 67 HP | 173 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 102 Nm | 265 Nm |
| Torque RPM | 3200 RPM | 2500 RPM |
| Engine Bore Size | 61 mm | 86 mm |
| Engine Stroke Size | 56.4 mm | 86 mm |
| Engine Compression Ratio | 8.0:1 | 9.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 850 kg | 1470 kg |
| Vehicle Length | 3400 mm | 4600 mm |
| Vehicle Width | 1480 mm | 1800 mm |
| Vehicle Height | 1250 mm | 1470 mm |
| Wheelbase Size | 2240 mm | 2710 mm |
| Fuel Tank Capacity | 43 L | 61 L |
