2004 Daihatsu Sirion vs. 2005 Opel Vectra
To start off, 2005 Opel Vectra is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Daihatsu Sirion. In addition, the cost of maintenance, including insurance, on 2004 Daihatsu Sirion would be higher. At 1,794 cc (4 cylinders), 2005 Opel Vectra is equipped with a bigger engine. In terms of performance, 2005 Opel Vectra (125 HP @ 6000 RPM) has 53 more horse power than 2004 Daihatsu Sirion. (72 HP @ 5200 RPM) In normal driving conditions, 2005 Opel Vectra should accelerate faster than 2004 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Vectra weights approximately 560 kg more than 2004 Daihatsu Sirion. 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, 2005 Opel Vectra (167 Nm @ 3800 RPM) has 66 more torque (in Nm) than 2004 Daihatsu Sirion. (101 Nm @ 3600 RPM). This means 2005 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2004 Daihatsu Sirion.
Compare all specifications:
| 2004 Daihatsu Sirion | 2005 Opel Vectra | |
| Make | Daihatsu | Opel |
| Model | Sirion | Vectra |
| Year Released | 2004 | 2005 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1296 cc | 1794 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 72 HP | 125 HP |
| Engine RPM | 5200 RPM | 6000 RPM |
| Torque | 101 Nm | 167 Nm |
| Torque RPM | 3600 RPM | 3800 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 850 kg | 1410 kg |
| Vehicle Length | 3680 mm | 4600 mm |
| Vehicle Width | 1600 mm | 1800 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 2350 mm | 2840 mm |
