2005 Alfa Romeo 156 vs. 1999 Opel Omega
To start off, 2005 Alfa Romeo 156 is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Opel Omega. In addition, the cost of maintenance, including insurance, on 1999 Opel Omega would be higher. At 3,179 cc (6 cylinders), 2005 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2005 Alfa Romeo 156 (247 HP @ 6200 RPM) has 67 more horse power than 1999 Opel Omega. (180 HP @ 6000 RPM). In normal driving conditions, 2005 Alfa Romeo 156 should accelerate faster than 1999 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Omega weights approximately 275 kg more than 2005 Alfa Romeo 156.
Because 1999 Opel Omega is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1999 Opel Omega. However, in wet, icy, snow, or gravel driving conditions, 2005 Alfa Romeo 156, being front wheel drive (FWD), will offer much better control with better grip. 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, 2005 Alfa Romeo 156 (305 Nm @ 4800 RPM) has 85 more torque (in Nm) than 1999 Opel Omega. (220 Nm @ 3400 RPM). This means 2005 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Omega.
Compare all specifications:
| 2005 Alfa Romeo 156 | 1999 Opel Omega | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Omega |
| Year Released | 2005 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 3179 cc | 2597 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 247 HP | 180 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 305 Nm | 220 Nm |
| Torque RPM | 4800 RPM | 3400 RPM |
| Engine Bore Size | 93 mm | 83.2 mm |
| Engine Stroke Size | 78 mm | 79.6 mm |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Top Speed | 250 km/hour | 229 km/hour |
| Acceleration 0-100mph | 6.3 seconds | 9.5 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1410 kg | 1685 kg |
| Vehicle Length | 4440 mm | 4900 mm |
| Vehicle Width | 1770 mm | 1780 mm |
| Vehicle Height | 1410 mm | 1460 mm |
| Wheelbase Size | 2600 mm | 2610 mm |
| Fuel Tank Capacity | 63 L | 75 L |
