2003 Alfa Romeo 166 vs. 2008 Opel Astra
To start off, 2008 Opel Astra 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 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 94 more horse power than 2008 Opel Astra. (123 HP @ 5600 RPM). In normal driving conditions, 2003 Alfa Romeo 166 should accelerate faster than 2008 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo 166 weights approximately 225 kg more than 2008 Opel Astra. 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 (265 Nm @ 5000 RPM) has 95 more torque (in Nm) than 2008 Opel Astra. (170 Nm @ 3800 RPM). This means 2003 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 2008 Opel Astra.
Compare all specifications:
| 2003 Alfa Romeo 166 | 2008 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | 166 | Astra |
| Year Released | 2003 | 2008 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 1794 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 217 HP | 123 HP |
| Engine RPM | 6300 RPM | 5600 RPM |
| Torque | 265 Nm | 170 Nm |
| Torque RPM | 5000 RPM | 3800 RPM |
| Engine Bore Size | 93 mm | 80.5 mm |
| Engine Stroke Size | 72.6 mm | 88.2 mm |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Top Speed | 236 km/hour | 198 km/hour |
| Acceleration 0-100mph | 8.6 seconds | 10.9 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1550 kg | 1325 kg |
| Vehicle Length | 4730 mm | 4520 mm |
| Vehicle Width | 1810 mm | 1800 mm |
| Vehicle Height | 1420 mm | 1510 mm |
| Wheelbase Size | 2600 mm | 2710 mm |
| Fuel Consumption Overall | 13 L/100km | 7.8 L/100km |
| Fuel Tank Capacity | 69 L | 52 L |
