2004 Alfa Romeo 156 vs. 1999 Opel Omega
To start off, 2004 Alfa Romeo 156 is newer by 5 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), 2004 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2004 Alfa Romeo 156 (247 HP @ 6200 RPM) has 105 more horse power than 1999 Opel Omega. (142 HP @ 5400 RPM). In normal driving conditions, 2004 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 129 kg more than 2004 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, 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, 2004 Alfa Romeo 156 (300 Nm @ 4800 RPM) has 90 more torque (in Nm) than 1999 Opel Omega. (210 Nm @ 4000 RPM). This means 2004 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Omega.
Compare all specifications:
| 2004 Alfa Romeo 156 | 1999 Opel Omega | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Omega |
| Year Released | 2004 | 1999 |
| Engine Position | Front | Middle |
| Engine Size | 3179 cc | 2198 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 247 HP | 142 HP |
| Engine RPM | 6200 RPM | 5400 RPM |
| Torque | 300 Nm | 210 Nm |
| Torque RPM | 4800 RPM | 4000 RPM |
| Engine Bore Size | 93 mm | 86 mm |
| Engine Stroke Size | 78 mm | 94.6 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1536 kg | 1665 kg |
| Vehicle Length | 4450 mm | 4900 mm |
| Vehicle Width | 1750 mm | 1790 mm |
| Vehicle Height | 1400 mm | 1510 mm |
| Wheelbase Size | 2710 mm | 2740 mm |
| Fuel Tank Capacity | 63 L | 75 L |
