2005 Alfa Romeo 156 vs. 1990 Opel Omega
To start off, 2005 Alfa Romeo 156 is newer by 15 year(s). Which means there will be less support and parts availability for 1990 Opel Omega. In addition, the cost of maintenance, including insurance, on 1990 Opel Omega would be higher. At 2,594 cc (6 cylinders), 1990 Opel Omega is equipped with a bigger engine. In terms of performance, 1990 Opel Omega (149 HP @ 5600 RPM) has 1 more horse power than 2005 Alfa Romeo 156. (148 HP @ 4000 RPM) In normal driving conditions, 1990 Opel Omega should accelerate faster than 2005 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2005 Alfa Romeo 156 weights approximately 120 kg more than 1990 Opel Omega.
Let's talk about torque, 2005 Alfa Romeo 156 (310 Nm @ 2000 RPM) has 86 more torque (in Nm) than 1990 Opel Omega. (224 Nm @ 3600 RPM). This means 2005 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 1990 Opel Omega.
Compare all specifications:
| 2005 Alfa Romeo 156 | 1990 Opel Omega | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Omega |
| Year Released | 2005 | 1990 |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 2594 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 149 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 310 Nm | 224 Nm |
| Torque RPM | 2000 RPM | 3600 RPM |
| Fuel Type | Diesel | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1585 kg | 1465 kg |
| Vehicle Width | 1750 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1490 mm |
| Wheelbase Size | 2600 mm | 2740 mm |
