1999 Daihatsu Sirion vs. 2002 Opel Vectra
To start off, 2002 Opel Vectra is newer by 3 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), 2002 Opel Vectra is equipped with a bigger engine. In terms of performance, 2002 Opel Vectra (99 HP @ 4400 RPM) has 46 more horse power than 1999 Daihatsu Sirion. (53 HP @ 5200 RPM) In normal driving conditions, 2002 Opel Vectra should accelerate faster than 1999 Daihatsu Sirion.
Because 1999 Daihatsu Sirion is four wheel drive (4WD), it will have significant more traction and grip than 2002 Opel Vectra. In wet, icy, snow, or gravel driving conditions, 1999 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, 2002 Opel Vectra (251 Nm @ 1500 RPM) has 163 more torque (in Nm) than 1999 Daihatsu Sirion. (88 Nm @ 3600 RPM). This means 2002 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 | 2002 Opel Vectra | |
| Make | Daihatsu | Opel |
| Model | Sirion | Vectra |
| Year Released | 1999 | 2002 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 988 cc | 1994 cc |
| Engine Cylinders | 3 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 53 HP | 99 HP |
| Engine RPM | 5200 RPM | 4400 RPM |
| Torque | 88 Nm | 251 Nm |
| Torque RPM | 3600 RPM | 1500 RPM |
| Engine Bore Size | 71.9 mm | 84 mm |
| Engine Stroke Size | 81 mm | 90 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Length | 3680 mm | 4600 mm |
| Vehicle Width | 1600 mm | 1770 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 2350 mm | 2710 mm |
| Fuel Tank Capacity | 37 L | 61 L |
