2007 Daihatsu Sirion vs. 1992 Daihatsu Opti
To start off, 2007 Daihatsu Sirion is newer by 15 year(s). Which means there will be less support and parts availability for 1992 Daihatsu Opti. In addition, the cost of maintenance, including insurance, on 1992 Daihatsu Opti would be higher. At 1,298 cc (4 cylinders), 2007 Daihatsu Sirion is equipped with a bigger engine. In terms of performance, 2007 Daihatsu Sirion (86 HP @ 6000 RPM) has 30 more horse power than 1992 Daihatsu Opti. (56 HP @ 7600 RPM). In normal driving conditions, 2007 Daihatsu Sirion should accelerate faster than 1992 Daihatsu Opti. With that said, vehicle weight also plays an important factor in acceleration. 2007 Daihatsu Sirion weights approximately 165 kg more than 1992 Daihatsu Opti. 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, 2007 Daihatsu Sirion (120 Nm @ 3200 RPM) has 56 more torque (in Nm) than 1992 Daihatsu Opti. (64 Nm @ 4000 RPM). This means 2007 Daihatsu Sirion will have an easier job in driving up hills or pulling heavy equipment than 1992 Daihatsu Opti. 1992 Daihatsu Opti has automatic transmission and 2007 Daihatsu Sirion has manual transmission. 2007 Daihatsu Sirion will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1992 Daihatsu Opti will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Daihatsu Sirion | 1992 Daihatsu Opti | |
| Make | Daihatsu | Daihatsu |
| Model | Sirion | Opti |
| Year Released | 2007 | 1992 |
| Engine Position | Front | Front |
| Engine Size | 1298 cc | 659 cc |
| Engine Cylinders | 4 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 86 HP | 56 HP |
| Engine RPM | 6000 RPM | 7600 RPM |
| Torque | 120 Nm | 64 Nm |
| Torque RPM | 3200 RPM | 4000 RPM |
| Engine Bore Size | 72 mm | 68 mm |
| Engine Stroke Size | 79.7 mm | 60.5 mm |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 925 kg | 760 kg |
| Vehicle Length | 3610 mm | 3400 mm |
| Vehicle Width | 1670 mm | 1480 mm |
| Vehicle Height | 1560 mm | 1410 mm |
| Wheelbase Size | 2440 mm | 2370 mm |
| Fuel Tank Capacity | 40 L | 40 L |
