1977 Alfa Romeo Alfasud vs. 2009 Daihatsu Sirion
To start off, 2009 Daihatsu Sirion is newer by 32 year(s). Which means there will be less support and parts availability for 1977 Alfa Romeo Alfasud. In addition, the cost of maintenance, including insurance, on 1977 Alfa Romeo Alfasud would be higher. At 1,298 cc (4 cylinders), 2009 Daihatsu Sirion is equipped with a bigger engine. In terms of performance, 2009 Daihatsu Sirion (90 HP @ 6000 RPM) has 28 more horse power than 1977 Alfa Romeo Alfasud. (62 HP @ 6000 RPM) In normal driving conditions, 2009 Daihatsu Sirion should accelerate faster than 1977 Alfa Romeo Alfasud. With that said, vehicle weight also plays an important factor in acceleration. 2009 Daihatsu Sirion weights approximately 90 kg more than 1977 Alfa Romeo Alfasud. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Daihatsu Sirion is four wheel drive (4WD), it will have significant more traction and grip than 1977 Alfa Romeo Alfasud. 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 32 more torque (in Nm) than 1977 Alfa Romeo Alfasud. (88 Nm @ 3200 RPM). This means 2009 Daihatsu Sirion will have an easier job in driving up hills or pulling heavy equipment than 1977 Alfa Romeo Alfasud.
Compare all specifications:
| 1977 Alfa Romeo Alfasud | 2009 Daihatsu Sirion | |
| Make | Alfa Romeo | Daihatsu |
| Model | Alfasud | Sirion |
| Year Released | 1977 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1185 cc | 1298 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 62 HP | 90 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 88 Nm | 120 Nm |
| Torque RPM | 3200 RPM | 4400 RPM |
| Engine Bore Size | 80 mm | 72 mm |
| Engine Stroke Size | 59 mm | 79.7 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 153 km/hour | 165 km/hour |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 890 kg | 980 kg |
| Vehicle Length | 3980 mm | 3610 mm |
| Vehicle Width | 1600 mm | 1670 mm |
| Vehicle Height | 1360 mm | 1560 mm |
| Wheelbase Size | 2520 mm | 2440 mm |
| Fuel Tank Capacity | 50 L | 38 L |
