1990 Alfa Romeo SZ vs. 2009 Daihatsu Sirion
To start off, 2009 Daihatsu Sirion is newer by 19 year(s). Which means there will be less support and parts availability for 1990 Alfa Romeo SZ. In addition, the cost of maintenance, including insurance, on 1990 Alfa Romeo SZ would be higher. At 2,957 cc (6 cylinders), 1990 Alfa Romeo SZ is equipped with a bigger engine. In terms of performance, 1990 Alfa Romeo SZ (208 HP @ 6200 RPM) has 106 more horse power than 2009 Daihatsu Sirion. (102 HP @ 6000 RPM). In normal driving conditions, 1990 Alfa Romeo SZ should accelerate faster than 2009 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 1990 Alfa Romeo SZ weights approximately 355 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.
Because 2009 Daihatsu Sirion is four wheel drive (4WD), it will have significant more traction and grip than 1990 Alfa Romeo SZ. 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, 1990 Alfa Romeo SZ (245 Nm @ 4500 RPM) has 113 more torque (in Nm) than 2009 Daihatsu Sirion. (132 Nm @ 4400 RPM). This means 1990 Alfa Romeo SZ will have an easier job in driving up hills or pulling heavy equipment than 2009 Daihatsu Sirion.
Compare all specifications:
| 1990 Alfa Romeo SZ | 2009 Daihatsu Sirion | |
| Make | Alfa Romeo | Daihatsu |
| Model | SZ | Sirion |
| Year Released | 1990 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2957 cc | 1495 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 208 HP | 102 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 245 Nm | 132 Nm |
| Torque RPM | 4500 RPM | 4400 RPM |
| Engine Bore Size | 93 mm | 72 mm |
| Engine Stroke Size | 72.6 mm | 91.8 mm |
| Engine Compression Ratio | 9.5:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 230 km/hour | 185 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1260 kg | 905 kg |
| Vehicle Length | 4290 mm | 3640 mm |
| Vehicle Width | 1740 mm | 1670 mm |
| Vehicle Height | 1320 mm | 1560 mm |
| Wheelbase Size | 2520 mm | 2440 mm |
| Fuel Tank Capacity | 50 L | 40 L |
