2000 Daihatsu Sirion vs. 2004 Opel Vectra
To start off, 2004 Opel Vectra is newer by 4 year(s). Which means there will be less support and parts availability for 2000 Daihatsu Sirion. In addition, the cost of maintenance, including insurance, on 2000 Daihatsu Sirion would be higher. At 1,995 cc (4 cylinders), 2004 Opel Vectra is equipped with a bigger engine. In terms of performance, 2004 Opel Vectra (173 HP @ 5500 RPM) has 120 more horse power than 2000 Daihatsu Sirion. (53 HP @ 5200 RPM) In normal driving conditions, 2004 Opel Vectra should accelerate faster than 2000 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Vectra weights approximately 595 kg more than 2000 Daihatsu Sirion. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2000 Daihatsu Sirion is four wheel drive (4WD), it will have significant more traction and grip than 2004 Opel Vectra. In wet, icy, snow, or gravel driving conditions, 2000 Daihatsu Sirion will offer significantly more control. 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 Vectra (229 Nm @ 2500 RPM) has 141 more torque (in Nm) than 2000 Daihatsu Sirion. (88 Nm @ 3600 RPM). This means 2004 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2000 Daihatsu Sirion.
Compare all specifications:
| 2000 Daihatsu Sirion | 2004 Opel Vectra | |
| Make | Daihatsu | Opel |
| Model | Sirion | Vectra |
| Year Released | 2000 | 2004 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 989 cc | 1995 cc |
| Engine Cylinders | 3 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 53 HP | 173 HP |
| Engine RPM | 5200 RPM | 5500 RPM |
| Torque | 88 Nm | 229 Nm |
| Torque RPM | 3600 RPM | 2500 RPM |
| Engine Bore Size | 71.9 mm | 86 mm |
| Engine Stroke Size | 81 mm | 86 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 890 kg | 1485 kg |
| Vehicle Length | 3680 mm | 4600 mm |
| Vehicle Width | 1600 mm | 1800 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 2350 mm | 2710 mm |
| Fuel Tank Capacity | 37 L | 60 L |
