1998 Alfa Romeo 166 vs. 2007 Opel Astra
To start off, 2007 Opel Astra is newer by 9 year(s). Which means there will be less support and parts availability for 1998 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 1998 Alfa Romeo 166 would be higher. At 1,970 cc (4 cylinders), 1998 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 1998 Alfa Romeo 166 (155 HP @ 6400 RPM) has 32 more horse power than 2007 Opel Astra. (123 HP @ 5600 RPM). In normal driving conditions, 1998 Alfa Romeo 166 should accelerate faster than 2007 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 1998 Alfa Romeo 166 weights approximately 211 kg more than 2007 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 166 (187 Nm @ 2800 RPM) has 17 more torque (in Nm) than 2007 Opel Astra. (170 Nm @ 3800 RPM). This means 1998 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Astra.
Compare all specifications:
| 1998 Alfa Romeo 166 | 2007 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | 166 | Astra |
| Year Released | 1998 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 155 HP | 123 HP |
| Engine RPM | 6400 RPM | 5600 RPM |
| Torque | 187 Nm | 170 Nm |
| Torque RPM | 2800 RPM | 3800 RPM |
| Engine Bore Size | 83.1 mm | 80.5 mm |
| Engine Stroke Size | 91 mm | 88.2 mm |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Acceleration 0-100mph | 9.6 seconds | 10.8 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1495 kg | 1284 kg |
| Vehicle Length | 4730 mm | 4260 mm |
| Vehicle Width | 1820 mm | 1760 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2710 mm | 2620 mm |
| Fuel Tank Capacity | 72 L | 52 L |
