1973 Alfa Romeo Alfasud vs. 2007 Daihatsu Sirion
To start off, 2007 Daihatsu Sirion is newer by 34 year(s). Which means there will be less support and parts availability for 1973 Alfa Romeo Alfasud. In addition, the cost of maintenance, including insurance, on 1973 Alfa Romeo Alfasud would be higher. At 1,186 cc (4 cylinders), 1973 Alfa Romeo Alfasud is equipped with a bigger engine. In terms of performance, 2007 Daihatsu Sirion (69 HP @ 6000 RPM) has 2 more horse power than 1973 Alfa Romeo Alfasud. (67 HP @ 6000 RPM) In normal driving conditions, 2007 Daihatsu Sirion should accelerate faster than 1973 Alfa Romeo Alfasud. With that said, vehicle weight also plays an important factor in acceleration. 2007 Daihatsu Sirion weights approximately 24 kg more than 1973 Alfa Romeo Alfasud. 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, 1973 Alfa Romeo Alfasud (119 Nm @ 4000 RPM) has 25 more torque (in Nm) than 2007 Daihatsu Sirion. (94 Nm @ 3600 RPM). This means 1973 Alfa Romeo Alfasud will have an easier job in driving up hills or pulling heavy equipment than 2007 Daihatsu Sirion.
Compare all specifications:
| 1973 Alfa Romeo Alfasud | 2007 Daihatsu Sirion | |
| Make | Alfa Romeo | Daihatsu |
| Model | Alfasud | Sirion |
| Year Released | 1973 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1186 cc | 998 cc |
| Engine Cylinders | 4 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 67 HP | 69 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 119 Nm | 94 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Engine Bore Size | 80 mm | 71 mm |
| Engine Stroke Size | 59 mm | 84 mm |
| Engine Compression Ratio | 9.0:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 160 km/hour | 160 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 870 kg | 894 kg |
| Vehicle Length | 3930 mm | 3610 mm |
| Vehicle Width | 1620 mm | 1670 mm |
| Vehicle Height | 1380 mm | 1560 mm |
| Wheelbase Size | 2520 mm | 2440 mm |
| Fuel Tank Capacity | 50 L | 40 L |
