1992 Alfa Romeo 155 vs. 1999 Opel Omega
To start off, 1999 Opel Omega is newer by 7 year(s). Which means there will be less support and parts availability for 1992 Alfa Romeo 155. In addition, the cost of maintenance, including insurance, on 1992 Alfa Romeo 155 would be higher. At 2,962 cc (6 cylinders), 1999 Opel Omega is equipped with a bigger engine. In terms of performance, 1999 Opel Omega (211 HP @ 6000 RPM) has 24 more horse power than 1992 Alfa Romeo 155. (187 HP @ 6000 RPM) In normal driving conditions, 1999 Opel Omega should accelerate faster than 1992 Alfa Romeo 155. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Omega weights approximately 422 kg more than 1992 Alfa Romeo 155. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1992 Alfa Romeo 155 is four wheel drive (4WD), it will have significant more traction and grip than 1999 Opel Omega. In wet, icy, snow, or gravel driving conditions, 1992 Alfa Romeo 155 will offer significantly more control. 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, 1992 Alfa Romeo 155 (291 Nm @ 2500 RPM) has 21 more torque (in Nm) than 1999 Opel Omega. (270 Nm @ 3400 RPM). This means 1992 Alfa Romeo 155 will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Omega.
Compare all specifications:
| 1992 Alfa Romeo 155 | 1999 Opel Omega | |
| Make | Alfa Romeo | Opel |
| Model | 155 | Omega |
| Year Released | 1992 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 2962 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 187 HP | 211 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 291 Nm | 270 Nm |
| Torque RPM | 2500 RPM | 3400 RPM |
| Engine Bore Size | 84 mm | 86 mm |
| Engine Stroke Size | 90 mm | 85 mm |
| Engine Compression Ratio | 8.0:1 | 10.8:1 |
| Top Speed | 225 km/hour | 235 km/hour |
| Acceleration 0-100mph | 7 seconds | 9 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1344 kg | 1766 kg |
| Vehicle Length | 4450 mm | 4900 mm |
| Vehicle Width | 1710 mm | 1780 mm |
| Vehicle Height | 1410 mm | 1550 mm |
| Wheelbase Size | 2550 mm | 2610 mm |
| Fuel Tank Capacity | 60 L | 75 L |
