1991 Opel Astra vs. 1999 Alfa Romeo 156
To start off, 1999 Alfa Romeo 156 is newer by 8 year(s). Which means there will be less support and parts availability for 1991 Opel Astra. In addition, the cost of maintenance, including insurance, on 1991 Opel Astra would be higher. At 2,492 cc (6 cylinders), 1999 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 1999 Alfa Romeo 156 (187 HP @ 6300 RPM) has 87 more horse power than 1991 Opel Astra. (100 HP @ 5600 RPM) In normal driving conditions, 1999 Alfa Romeo 156 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 1999 Alfa Romeo 156 weights approximately 320 kg more than 1991 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, 1999 Alfa Romeo 156 (222 Nm @ 5000 RPM) has 87 more torque (in Nm) than 1991 Opel Astra. (135 Nm @ 3400 RPM). This means 1999 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra. 1999 Alfa Romeo 156 has automatic transmission and 1991 Opel Astra has manual transmission. 1991 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1999 Alfa Romeo 156 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Opel Astra | 1999 Alfa Romeo 156 | |
| Make | Opel | Alfa Romeo |
| Model | Astra | 156 |
| Year Released | 1991 | 1999 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 2492 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 100 HP | 187 HP |
| Engine RPM | 5600 RPM | 6300 RPM |
| Torque | 135 Nm | 222 Nm |
| Torque RPM | 3400 RPM | 5000 RPM |
| Engine Bore Size | 79 mm | 88 mm |
| Engine Stroke Size | 81.5 mm | 68.3 mm |
| Engine Compression Ratio | 9.8:1 | 10.3:1 |
| Top Speed | 190 km/hour | 227 km/hour |
| Acceleration 0-100mph | 10.4 seconds | 8.5 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1030 kg | 1350 kg |
| Vehicle Length | 4250 mm | 4440 mm |
| Vehicle Width | 1690 mm | 1750 mm |
| Vehicle Height | 1430 mm | 1420 mm |
| Wheelbase Size | 2530 mm | 2600 mm |
| Fuel Tank Capacity | 52 L | 63 L |
