1999 Daihatsu Sirion vs. 2003 Opel Vectra
To start off, 2003 Opel Vectra is newer by 4 year(s). Which means there will be less support and parts availability for 1999 Daihatsu Sirion. In addition, the cost of maintenance, including insurance, on 1999 Daihatsu Sirion would be higher. At 1,994 cc (4 cylinders), 2003 Opel Vectra is equipped with a bigger engine. In terms of performance, 2003 Opel Vectra (100 HP @ 4300 RPM) has 28 more horse power than 1999 Daihatsu Sirion. (72 HP @ 5200 RPM) In normal driving conditions, 2003 Opel Vectra should accelerate faster than 1999 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Vectra weights approximately 640 kg more than 1999 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, 2003 Opel Vectra (205 Nm @ 1600 RPM) has 104 more torque (in Nm) than 1999 Daihatsu Sirion. (101 Nm @ 3600 RPM). This means 2003 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 1999 Daihatsu Sirion.
Compare all specifications:
| 1999 Daihatsu Sirion | 2003 Opel Vectra | |
| Make | Daihatsu | Opel |
| Model | Sirion | Vectra |
| Year Released | 1999 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 1298 cc | 1994 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 72 HP | 100 HP |
| Engine RPM | 5200 RPM | 4300 RPM |
| Torque | 101 Nm | 205 Nm |
| Torque RPM | 3600 RPM | 1600 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 850 kg | 1490 kg |
| Vehicle Length | 3680 mm | 4830 mm |
| Vehicle Width | 1600 mm | 1800 mm |
| Vehicle Height | 1460 mm | 1510 mm |
