1977 Alfa Romeo Alfasud vs. 2007 Daihatsu Sirion
To start off, 2007 Daihatsu Sirion is newer by 30 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 1,350 cc (4 cylinders), 1977 Alfa Romeo Alfasud is equipped with a bigger engine. In terms of performance, 2007 Daihatsu Sirion (86 HP @ 6000 RPM) has 1 more horse power than 1977 Alfa Romeo Alfasud. (85 HP @ 6000 RPM) In normal driving conditions, 2007 Daihatsu Sirion should accelerate faster than 1977 Alfa Romeo Alfasud. With that said, vehicle weight also plays an important factor in acceleration. 2007 Daihatsu Sirion weights approximately 35 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.
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, 2007 Daihatsu Sirion (120 Nm @ 3200 RPM) has 9 more torque (in Nm) than 1977 Alfa Romeo Alfasud. (111 Nm @ 3500 RPM). This means 2007 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 | 2007 Daihatsu Sirion | |
| Make | Alfa Romeo | Daihatsu |
| Model | Alfasud | Sirion |
| Year Released | 1977 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1350 cc | 1298 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | boxer | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 86 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 111 Nm | 120 Nm |
| Torque RPM | 3500 RPM | 3200 RPM |
| Engine Bore Size | 80 mm | 72 mm |
| Engine Stroke Size | 67.2 mm | 79.7 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 890 kg | 925 kg |
| Vehicle Length | 4030 mm | 3610 mm |
| Vehicle Width | 1630 mm | 1670 mm |
| Vehicle Height | 1310 mm | 1560 mm |
| Wheelbase Size | 2460 mm | 2440 mm |
| Fuel Tank Capacity | 50 L | 40 L |
