2003 Alpina B7 vs. 2010 Daihatsu Sirion
To start off, 2010 Daihatsu Sirion is newer by 7 year(s). Which means there will be less support and parts availability for 2003 Alpina B7. In addition, the cost of maintenance, including insurance, on 2003 Alpina B7 would be higher. At 4,399 cc (8 cylinders), 2003 Alpina B7 is equipped with a bigger engine. In terms of performance, 2003 Alpina B7 (492 HP @ 5500 RPM) has 406 more horse power than 2010 Daihatsu Sirion. (86 HP @ 6000 RPM). In normal driving conditions, 2003 Alpina B7 should accelerate faster than 2010 Daihatsu Sirion.
Because 2003 Alpina B7 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2003 Alpina B7. However, in wet, icy, snow, or gravel driving conditions, 2010 Daihatsu Sirion, being front wheel drive (FWD), will offer much better control with better grip. 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 B7 (700 Nm @ 4250 RPM) has 579 more torque (in Nm) than 2010 Daihatsu Sirion. (121 Nm @ 3200 RPM). This means 2003 Alpina B7 will have an easier job in driving up hills or pulling heavy equipment than 2010 Daihatsu Sirion.
Compare all specifications:
| 2003 Alpina B7 | 2010 Daihatsu Sirion | |
| Make | Alpina | Daihatsu |
| Model | B7 | Sirion |
| Year Released | 2003 | 2010 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4399 cc | 1298 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 492 HP | 86 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 700 Nm | 121 Nm |
| Torque RPM | 4250 RPM | 3200 RPM |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 295 km/hour | 170 km/hour |
| Acceleration 0-100mph | 5.5 seconds | 11.3 seconds |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
