2003 Alfa Romeo 156 vs. 2003 Opel Astra
To start off, both 2003 Alfa Romeo 156 and 2003 Opel Astra were released in the same year (2003). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,387 cc (6 cylinders), 2003 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 156 (189 HP @ 6300 RPM) has 66 more horse power than 2003 Opel Astra. (123 HP @ 5600 RPM). In normal driving conditions, 2003 Alfa Romeo 156 should accelerate faster than 2003 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo 156 weights approximately 395 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, 2003 Alfa Romeo 156 (218 Nm @ 5000 RPM) has 45 more torque (in Nm) than 2003 Opel Astra. (173 Nm @ 3800 RPM). This means 2003 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Astra. 2003 Alfa Romeo 156 has automatic transmission and 2003 Opel Astra has manual transmission. 2003 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Alfa Romeo 156 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2003 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Astra |
| Year Released | 2003 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 123 HP |
| Engine RPM | 6300 RPM | 5600 RPM |
| Torque | 218 Nm | 173 Nm |
| Torque RPM | 5000 RPM | 3800 RPM |
| Engine Bore Size | 88 mm | 80.5 mm |
| Engine Stroke Size | 68.3 mm | 88.2 mm |
| Engine Compression Ratio | 10.3:1 | 10.5:1 |
| Top Speed | 227 km/hour | 198 km/hour |
| Acceleration 0-100mph | 8.8 seconds | 11.1 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1510 kg | 1115 kg |
| Vehicle Length | 4450 mm | 4260 mm |
| Vehicle Width | 1750 mm | 1760 mm |
| Vehicle Height | 1440 mm | 1470 mm |
| Wheelbase Size | 2550 mm | 2640 mm |
| Fuel Consumption Highway | 8.6 L/100km | 6.2 L/100km |
| Fuel Consumption City | 17.5 L/100km | 10.5 L/100km |
| Fuel Consumption Overall | 11.9 L/100km | 7.8 L/100km |
| Fuel Tank Capacity | 63 L | 53 L |
