1971 Alfa Romeo Alfasud vs. 2009 Daihatsu Sirion
To start off, 2009 Daihatsu Sirion is newer by 38 year(s). Which means there will be less support and parts availability for 1971 Alfa Romeo Alfasud. In addition, the cost of maintenance, including insurance, on 1971 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 (86 HP @ 6000 RPM) has 24 more horse power than 1971 Alfa Romeo Alfasud. (62 HP @ 6000 RPM) In normal driving conditions, 2009 Daihatsu Sirion should accelerate faster than 1971 Alfa Romeo Alfasud. With that said, vehicle weight also plays an important factor in acceleration. 1971 Alfa Romeo Alfasud weights approximately 108 kg more than 2009 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, 2009 Daihatsu Sirion (121 Nm @ 3200 RPM) has 38 more torque (in Nm) than 1971 Alfa Romeo Alfasud. (83 Nm @ 3500 RPM). This means 2009 Daihatsu Sirion will have an easier job in driving up hills or pulling heavy equipment than 1971 Alfa Romeo Alfasud.
Compare all specifications:
| 1971 Alfa Romeo Alfasud | 2009 Daihatsu Sirion | |
| Make | Alfa Romeo | Daihatsu |
| Model | Alfasud | Sirion |
| Year Released | 1971 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1186 cc | 1298 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | boxer | in-line |
| Horse Power | 62 HP | 86 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 83 Nm | 121 Nm |
| Torque RPM | 3500 RPM | 3200 RPM |
| Engine Bore Size | 80 mm | 72 mm |
| Engine Stroke Size | 59 mm | 79.7 mm |
| Drive Type | Front | Front |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1048 kg | 940 kg |
| Vehicle Length | 3930 mm | 3610 mm |
| Vehicle Width | 1660 mm | 1670 mm |
| Vehicle Height | 1100 mm | 1560 mm |
| Wheelbase Size | 2260 mm | 2440 mm |
