2003 Alpina B3 vs. 2000 Daihatsu Sirion
To start off, 2003 Alpina B3 is newer by 3 year(s). Which means there will be less support and parts availability for 2000 Daihatsu Sirion. In addition, the cost of maintenance, including insurance, on 2000 Daihatsu Sirion would be higher. At 3,346 cc (6 cylinders), 2003 Alpina B3 is equipped with a bigger engine. In terms of performance, 2003 Alpina B3 (301 HP @ 6300 RPM) has 248 more horse power than 2000 Daihatsu Sirion. (53 HP @ 5200 RPM). In normal driving conditions, 2003 Alpina B3 should accelerate faster than 2000 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alpina B3 weights approximately 1060 kg more than 2000 Daihatsu Sirion. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2000 Daihatsu Sirion is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alpina B3. In wet, icy, snow, or gravel driving conditions, 2000 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, 2003 Alpina B3 (362 Nm @ 4800 RPM) has 274 more torque (in Nm) than 2000 Daihatsu Sirion. (88 Nm @ 3600 RPM). This means 2003 Alpina B3 will have an easier job in driving up hills or pulling heavy equipment than 2000 Daihatsu Sirion.
Compare all specifications:
| 2003 Alpina B3 | 2000 Daihatsu Sirion | |
| Make | Alpina | Daihatsu |
| Model | B3 | Sirion |
| Year Released | 2003 | 2000 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 989 cc |
| Engine Cylinders | 6 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 53 HP |
| Engine RPM | 6300 RPM | 5200 RPM |
| Torque | 362 Nm | 88 Nm |
| Torque RPM | 4800 RPM | 3600 RPM |
| Engine Bore Size | 87 mm | 71.9 mm |
| Engine Stroke Size | 93.1 mm | 81 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | 4WD |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1950 kg | 890 kg |
| Vehicle Length | 4490 mm | 3680 mm |
| Vehicle Width | 1760 mm | 1600 mm |
| Vehicle Height | 1370 mm | 1460 mm |
| Wheelbase Size | 2730 mm | 2350 mm |
| Fuel Tank Capacity | 63 L | 37 L |
