2008 Daihatsu Sirion vs. 2003 Fiat Siena
To start off, 2008 Daihatsu Sirion is newer by 5 year(s). Which means there will be less support and parts availability for 2003 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2003 Fiat Siena would be higher. At 1,298 cc (4 cylinders), 2008 Daihatsu Sirion is equipped with a bigger engine. In terms of performance, 2008 Daihatsu Sirion (86 HP @ 6000 RPM) has 16 more horse power than 2003 Fiat Siena. (70 HP @ 5750 RPM). In normal driving conditions, 2008 Daihatsu Sirion should accelerate faster than 2003 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2003 Fiat Siena weights approximately 80 kg more than 2008 Daihatsu Sirion.
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, 2008 Daihatsu Sirion (120 Nm @ 3200 RPM) has 25 more torque (in Nm) than 2003 Fiat Siena. (95 Nm @ 4000 RPM). This means 2008 Daihatsu Sirion will have an easier job in driving up hills or pulling heavy equipment than 2003 Fiat Siena. 2008 Daihatsu Sirion has automatic transmission and 2003 Fiat Siena has manual transmission. 2003 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Daihatsu Sirion will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Daihatsu Sirion | 2003 Fiat Siena | |
| Make | Daihatsu | Fiat |
| Model | Sirion | Siena |
| Year Released | 2008 | 2003 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1298 cc | 999 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 86 HP | 70 HP |
| Engine RPM | 6000 RPM | 5750 RPM |
| Torque | 120 Nm | 95 Nm |
| Torque RPM | 3200 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 940 kg | 1020 kg |
| Vehicle Length | 3610 mm | 4110 mm |
| Vehicle Width | 1560 mm | 1630 mm |
| Vehicle Height | 1670 mm | 1470 mm |
| Wheelbase Size | 2440 mm | 2380 mm |
