2003 Alfa Romeo 166 vs. 2011 Daihatsu Sirion
To start off, 2011 Daihatsu Sirion is newer by 8 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 166 would be higher. At 2,959 cc (6 cylinders), 2003 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 166 (217 HP @ 6300 RPM) has 148 more horse power than 2011 Daihatsu Sirion. (69 HP @ 6000 RPM). In normal driving conditions, 2003 Alfa Romeo 166 should accelerate faster than 2011 Daihatsu Sirion.
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, 2003 Alfa Romeo 166 (265 Nm @ 5000 RPM) has 171 more torque (in Nm) than 2011 Daihatsu Sirion. (94 Nm @ 3600 RPM). This means 2003 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 2011 Daihatsu Sirion. 2003 Alfa Romeo 166 has automatic transmission and 2011 Daihatsu Sirion has manual transmission. 2011 Daihatsu Sirion will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Alfa Romeo 166 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Alfa Romeo 166 | 2011 Daihatsu Sirion | |
| Make | Alfa Romeo | Daihatsu |
| Model | 166 | Sirion |
| Year Released | 2003 | 2011 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 998 cc |
| Engine Cylinders | 6 cylinders | 3 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 217 HP | 69 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 265 Nm | 94 Nm |
| Torque RPM | 5000 RPM | 3600 RPM |
| Engine Bore Size | 93 mm | 71.1 mm |
| Engine Stroke Size | 72.6 mm | 84 mm |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Acceleration 0-100mph | 8.6 seconds | 13.9 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
