1966 Alfa Romeo Spider vs. 2009 Daihatsu Sirion
To start off, 2009 Daihatsu Sirion is newer by 43 year(s). Which means there will be less support and parts availability for 1966 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 1966 Alfa Romeo Spider would be higher. At 2,582 cc (6 cylinders), 1966 Alfa Romeo Spider is equipped with a bigger engine. In terms of performance, 1966 Alfa Romeo Spider (163 HP @ 5900 RPM) has 62 more horse power than 2009 Daihatsu Sirion. (101 HP @ 3600 RPM). In normal driving conditions, 1966 Alfa Romeo Spider should accelerate faster than 2009 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 1966 Alfa Romeo Spider weights approximately 388 kg more than 2009 Daihatsu Sirion. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1966 Alfa Romeo Spider (220 Nm @ 4000 RPM) has 80 more torque (in Nm) than 2009 Daihatsu Sirion. (140 Nm @ 4600 RPM). This means 1966 Alfa Romeo Spider will have an easier job in driving up hills or pulling heavy equipment than 2009 Daihatsu Sirion.
Compare all specifications:
| 1966 Alfa Romeo Spider | 2009 Daihatsu Sirion | |
| Make | Alfa Romeo | Daihatsu |
| Model | Spider | Sirion |
| Year Released | 1966 | 2009 |
| Body Type | Roadster | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2582 cc | 1298 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 163 HP | 101 HP |
| Engine RPM | 5900 RPM | 3600 RPM |
| Torque | 220 Nm | 140 Nm |
| Torque RPM | 4000 RPM | 4600 RPM |
| Engine Bore Size | 83 mm | 72 mm |
| Engine Stroke Size | 79.6 mm | 79.7 mm |
| Engine Compression Ratio | 9.0:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1330 kg | 942 kg |
| Vehicle Length | 4510 mm | 3610 mm |
| Vehicle Width | 1610 mm | 1560 mm |
| Vehicle Height | 1390 mm | 1670 mm |
| Wheelbase Size | 2510 mm | 2440 mm |
| Fuel Tank Capacity | 46 L | 40 L |
