2003 Alfa Romeo 166 vs. 2008 Daihatsu Sirion
To start off, 2008 Daihatsu Sirion is newer by 5 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 1,970 cc (6 cylinders), 2003 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 166 (148 HP @ 6300 RPM) has 62 more horse power than 2008 Daihatsu Sirion. (86 HP @ 6000 RPM). In normal driving conditions, 2003 Alfa Romeo 166 should accelerate faster than 2008 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo 166 weights approximately 480 kg more than 2008 Daihatsu Sirion. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 (182 Nm @ 3800 RPM) has 62 more torque (in Nm) than 2008 Daihatsu Sirion. (120 Nm @ 3200 RPM). This means 2003 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 2008 Daihatsu Sirion. 2008 Daihatsu Sirion has automatic transmission and 2003 Alfa Romeo 166 has manual transmission. 2003 Alfa Romeo 166 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Daihatsu Sirion will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Alfa Romeo 166 | 2008 Daihatsu Sirion | |
| Make | Alfa Romeo | Daihatsu |
| Model | 166 | Sirion |
| Year Released | 2003 | 2008 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 1296 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 86 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 182 Nm | 120 Nm |
| Torque RPM | 3800 RPM | 3200 RPM |
| Top Speed | 211 km/hour | 175 km/hour |
| Acceleration 0-100mph | 9.8 seconds | 9.6 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1420 kg | 940 kg |
| Vehicle Length | 4730 mm | 3400 mm |
| Vehicle Height | 1420 mm | 1250 mm |
| Wheelbase Size | 2600 mm | 2440 mm |
| Fuel Consumption Overall | 9.7 L/100km | 5.7 L/100km |
| Fuel Tank Capacity | 69 L | 40 L |
