2007 Opel Astra vs. 2004 Alfa Romeo 166
To start off, 2007 Opel Astra is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2004 Alfa Romeo 166 would be higher. At 1,997 cc (4 cylinders), 2007 Opel Astra is equipped with a bigger engine. In terms of performance, 2007 Opel Astra (197 HP @ 5400 RPM) has 49 more horse power than 2004 Alfa Romeo 166. (148 HP @ 6500 RPM). In normal driving conditions, 2007 Opel Astra should accelerate faster than 2004 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2004 Alfa Romeo 166 weights approximately 125 kg more than 2007 Opel Astra.
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, 2007 Opel Astra (262 Nm @ 4200 RPM) has 81 more torque (in Nm) than 2004 Alfa Romeo 166. (181 Nm @ 3800 RPM). This means 2007 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2004 Alfa Romeo 166.
Compare all specifications:
| 2007 Opel Astra | 2004 Alfa Romeo 166 | |
| Make | Opel | Alfa Romeo |
| Model | Astra | 166 |
| Year Released | 2007 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 1997 cc | 1970 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 197 HP | 148 HP |
| Engine RPM | 5400 RPM | 6500 RPM |
| Torque | 262 Nm | 181 Nm |
| Torque RPM | 4200 RPM | 3800 RPM |
| Engine Bore Size | 86 mm | 83 mm |
| Engine Stroke Size | 86 mm | 91 mm |
| Engine Compression Ratio | 8.8:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 230 km/hour | 211 km/hour |
| Acceleration 0-100mph | 8.2 seconds | 9.8 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1385 kg | 1510 kg |
| Vehicle Length | 4260 mm | 4730 mm |
| Vehicle Width | 1760 mm | 1810 mm |
| Vehicle Height | 1470 mm | 1420 mm |
| Wheelbase Size | 2620 mm | 2710 mm |
| Fuel Consumption Overall | 9.3 L/100km | 9.9 L/100km |
