2006 Alfa Romeo 166 vs. 2003 Opel Astra
To start off, 2006 Alfa Romeo 166 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Opel Astra. In addition, the cost of maintenance, including insurance, on 2003 Opel Astra would be higher. At 3,179 cc (6 cylinders), 2006 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2006 Alfa Romeo 166 (238 HP @ 6200 RPM) has 90 more horse power than 2003 Opel Astra. (148 HP @ 5800 RPM). In normal driving conditions, 2006 Alfa Romeo 166 should accelerate faster than 2003 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Alfa Romeo 166 weights approximately 317 kg more than 2003 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, 2006 Alfa Romeo 166 (289 Nm @ 4800 RPM) has 86 more torque (in Nm) than 2003 Opel Astra. (203 Nm @ 4000 RPM). This means 2006 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Astra.
Compare all specifications:
| 2006 Alfa Romeo 166 | 2003 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | 166 | Astra |
| Year Released | 2006 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3179 cc | 2198 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 238 HP | 148 HP |
| Engine RPM | 6200 RPM | 5800 RPM |
| Torque | 289 Nm | 203 Nm |
| Torque RPM | 4800 RPM | 4000 RPM |
| Engine Bore Size | 93 mm | 86 mm |
| Engine Stroke Size | 78 mm | 94.6 mm |
| Engine Compression Ratio | 10.0:1 | 10.0:1 |
| Top Speed | 245 km/hour | 208 km/hour |
| Acceleration 0-100mph | 7.4 seconds | 10 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1615 kg | 1298 kg |
| Vehicle Length | 4730 mm | 4260 mm |
| Vehicle Width | 1810 mm | 1720 mm |
| Vehicle Height | 1420 mm | 1430 mm |
| Wheelbase Size | 2710 mm | 2740 mm |
| Fuel Consumption Overall | 12.5 L/100km | 8.6 L/100km |
| Fuel Tank Capacity | 69 L | 52 L |
