2007 Daihatsu Sirion vs. 2003 Opel Speedster
To start off, 2007 Daihatsu Sirion is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Opel Speedster. In addition, the cost of maintenance, including insurance, on 2003 Opel Speedster would be higher. At 2,198 cc (4 cylinders), 2003 Opel Speedster is equipped with a bigger engine. In terms of performance, 2003 Opel Speedster (145 HP @ 6000 RPM) has 59 more horse power than 2007 Daihatsu Sirion. (86 HP @ 6000 RPM) In normal driving conditions, 2003 Opel Speedster should accelerate faster than 2007 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2007 Daihatsu Sirion weights approximately 49 kg more than 2003 Opel Speedster.
Because 2003 Opel Speedster is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2003 Opel Speedster. However, in wet, icy, snow, or gravel driving conditions, 2007 Daihatsu Sirion, being front wheel drive (FWD), will offer much better control with better grip. 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 Opel Speedster (203 Nm @ 4000 RPM) has 83 more torque (in Nm) than 2007 Daihatsu Sirion. (120 Nm @ 3200 RPM). This means 2003 Opel Speedster will have an easier job in driving up hills or pulling heavy equipment than 2007 Daihatsu Sirion.
Compare all specifications:
| 2007 Daihatsu Sirion | 2003 Opel Speedster | |
| Make | Daihatsu | Opel |
| Model | Sirion | Speedster |
| Year Released | 2007 | 2003 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Middle |
| Engine Size | 1298 cc | 2198 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 86 HP | 145 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 120 Nm | 203 Nm |
| Torque RPM | 3200 RPM | 4000 RPM |
| Engine Bore Size | 72 mm | 86 mm |
| Engine Stroke Size | 79.7 mm | 94.6 mm |
| Engine Compression Ratio | 10.0:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 180 km/hour | 217 km/hour |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 925 kg | 876 kg |
| Vehicle Length | 3610 mm | 3790 mm |
| Vehicle Width | 1670 mm | 1710 mm |
| Vehicle Height | 1560 mm | 1120 mm |
| Wheelbase Size | 2440 mm | 2710 mm |
| Fuel Consumption Overall | 5 L/100km | 8.5 L/100km |
| Fuel Tank Capacity | 40 L | 36 L |
