2004 Daihatsu Copen vs. 2004 Opel Signum
To start off, both 2004 Daihatsu Copen and 2004 Opel Signum were released in the same year (2004). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,175 cc (6 cylinders), 2004 Opel Signum is equipped with a bigger engine. In terms of performance, 2004 Opel Signum (208 HP @ 6200 RPM) has 141 more horse power than 2004 Daihatsu Copen. (67 HP @ 6000 RPM) In normal driving conditions, 2004 Opel Signum should accelerate faster than 2004 Daihatsu Copen. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 745 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, 2004 Opel Signum (300 Nm @ 4000 RPM) has 200 more torque (in Nm) than 2004 Daihatsu Copen. (100 Nm @ 3200 RPM). This means 2004 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2004 Daihatsu Copen.
Compare all specifications:
| 2004 Daihatsu Copen | 2004 Opel Signum | |
| Make | Daihatsu | Opel |
| Model | Copen | Signum |
| Year Released | 2004 | 2004 |
| Body Type | Roadster | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 659 cc | 3175 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 67 HP | 208 HP |
| Engine RPM | 6000 RPM | 6200 RPM |
| Torque | 100 Nm | 300 Nm |
| Torque RPM | 3200 RPM | 4000 RPM |
| Engine Bore Size | 61 mm | 87.5 mm |
| Engine Stroke Size | 56.4 mm | 88 mm |
| Engine Compression Ratio | 8.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 170 km/hour | 237 km/hour |
| Acceleration 0-100mph | 12 seconds | 7.9 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 850 kg | 1595 kg |
| Vehicle Length | 3400 mm | 4640 mm |
| Vehicle Width | 1480 mm | 1800 mm |
| Vehicle Height | 1250 mm | 1470 mm |
| Wheelbase Size | 2380 mm | 2740 mm |
| Fuel Consumption Overall | 4.8 L/100km | 10.1 L/100km |
| Fuel Tank Capacity | 43 L | 52 L |
