2004 Alfa Romeo 156 vs. 2008 Opel Omega
To start off, 2008 Opel Omega is newer by 4 year(s). Which means there will be less support and parts availability for 2004 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2004 Alfa Romeo 156 would be higher. At 2,597 cc (6 cylinders), 2008 Opel Omega is equipped with a bigger engine. In terms of performance, 2004 Alfa Romeo 156 (190 HP @ 6300 RPM) has 13 more horse power than 2008 Opel Omega. (177 HP @ 3400 RPM). In normal driving conditions, 2004 Alfa Romeo 156 should accelerate faster than 2008 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 2008 Opel Omega weights approximately 205 kg more than 2004 Alfa Romeo 156.
Because 2008 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 2008 Opel Omega. However, in wet, icy, snow, or gravel driving conditions, 2004 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, 2008 Opel Omega (241 Nm @ 3400 RPM) has 23 more torque (in Nm) than 2004 Alfa Romeo 156. (218 Nm @ 5000 RPM). This means 2008 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 2004 Alfa Romeo 156.
Compare all specifications:
| 2004 Alfa Romeo 156 | 2008 Opel Omega | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Omega |
| Year Released | 2004 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 2597 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 190 HP | 177 HP |
| Engine RPM | 6300 RPM | 3400 RPM |
| Torque | 218 Nm | 241 Nm |
| Torque RPM | 5000 RPM | 3400 RPM |
| Engine Bore Size | 88 mm | 83.2 mm |
| Engine Stroke Size | 68.3 mm | 79.6 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Acceleration 0-100mph | 7.3 seconds | 9.5 seconds |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1480 kg | 1685 kg |
| Wheelbase Size | 2600 mm | 2740 mm |
| Fuel Consumption Overall | 11.9 L/100km | 10.6 L/100km |
| Fuel Tank Capacity | 63 L | 75 L |
