1998 Alfa Romeo 156 vs. 2005 Opel Astra
To start off, 2005 Opel Astra is newer by 7 year(s). Which means there will be less support and parts availability for 1998 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 1998 Alfa Romeo 156 would be higher. At 2,492 cc (6 cylinders), 1998 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 1998 Alfa Romeo 156 (187 HP @ 6300 RPM) has 64 more horse power than 2005 Opel Astra. (123 HP @ 5600 RPM). In normal driving conditions, 1998 Alfa Romeo 156 should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 1998 Alfa Romeo 156 weights approximately 72 kg more than 2005 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, 1998 Alfa Romeo 156 (222 Nm @ 5000 RPM) has 52 more torque (in Nm) than 2005 Opel Astra. (170 Nm @ 3800 RPM). This means 1998 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra.
Compare all specifications:
| 1998 Alfa Romeo 156 | 2005 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Astra |
| Year Released | 1998 | 2005 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 187 HP | 123 HP |
| Engine RPM | 6300 RPM | 5600 RPM |
| Torque | 222 Nm | 170 Nm |
| Torque RPM | 5000 RPM | 3800 RPM |
| Engine Bore Size | 88 mm | 80.6 mm |
| Engine Stroke Size | 68.3 mm | 88.2 mm |
| Engine Compression Ratio | 10.3:1 | 10.5:1 |
| Acceleration 0-100mph | 8.5 seconds | 11.7 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1350 kg | 1278 kg |
| Vehicle Length | 4440 mm | 4300 mm |
| Vehicle Width | 1750 mm | 1760 mm |
| Vehicle Height | 1420 mm | 1440 mm |
| Wheelbase Size | 2600 mm | 2710 mm |
| Fuel Consumption Highway | 8.6 L/100km | 6.2 L/100km |
| Fuel Consumption City | 17.5 L/100km | 11.3 L/100km |
| Fuel Consumption Overall | 11.9 L/100km | 8.1 L/100km |
| Fuel Tank Capacity | 63 L | 52 L |
