2009 Daihatsu Sirion vs. 1978 Fiat 131
To start off, 2009 Daihatsu Sirion is newer by 31 year(s). Which means there will be less support and parts availability for 1978 Fiat 131. In addition, the cost of maintenance, including insurance, on 1978 Fiat 131 would be higher. At 1,995 cc (4 cylinders), 1978 Fiat 131 is equipped with a bigger engine. In terms of performance, 2009 Daihatsu Sirion (90 HP @ 6000 RPM) has 31 more horse power than 1978 Fiat 131. (59 HP @ 4400 RPM). In normal driving conditions, 2009 Daihatsu Sirion should accelerate faster than 1978 Fiat 131. With that said, vehicle weight also plays an important factor in acceleration. 1978 Fiat 131 weights approximately 200 kg more than 2009 Daihatsu Sirion.
Because 2009 Daihatsu Sirion is four wheel drive (4WD), it will have significant more traction and grip than 1978 Fiat 131. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Daihatsu Sirion (120 Nm @ 4400 RPM) has 7 more torque (in Nm) than 1978 Fiat 131. (113 Nm @ 2400 RPM). This means 2009 Daihatsu Sirion will have an easier job in driving up hills or pulling heavy equipment than 1978 Fiat 131.
Compare all specifications:
| 2009 Daihatsu Sirion | 1978 Fiat 131 | |
| Make | Daihatsu | Fiat |
| Model | Sirion | 131 |
| Year Released | 2009 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 1298 cc | 1995 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 90 HP | 59 HP |
| Engine RPM | 6000 RPM | 4400 RPM |
| Torque | 120 Nm | 113 Nm |
| Torque RPM | 4400 RPM | 2400 RPM |
| Engine Bore Size | 72 mm | 88 mm |
| Engine Stroke Size | 79.7 mm | 82 mm |
| Engine Compression Ratio | 10.0:1 | 22.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 980 kg | 1180 kg |
| Vehicle Length | 3610 mm | 4270 mm |
| Vehicle Width | 1670 mm | 1660 mm |
| Vehicle Height | 1560 mm | 1370 mm |
| Wheelbase Size | 2440 mm | 2500 mm |
