2007 Alfa Romeo 159 vs. 2003 Opel Omega
To start off, 2007 Alfa Romeo 159 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Opel Omega. In addition, the cost of maintenance, including insurance, on 2003 Opel Omega would be higher. At 2,387 cc (5 cylinders), 2007 Alfa Romeo 159 is equipped with a bigger engine. In terms of performance, 2007 Alfa Romeo 159 (198 HP @ 4000 RPM) has 56 more horse power than 2003 Opel Omega. (142 HP @ 5400 RPM). In normal driving conditions, 2007 Alfa Romeo 159 should accelerate faster than 2003 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 2007 Alfa Romeo 159 weights approximately 90 kg more than 2003 Opel Omega. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 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 2003 Opel Omega. However, in wet, icy, snow, or gravel driving conditions, 2007 Alfa Romeo 159, 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, 2007 Alfa Romeo 159 (400 Nm @ 2000 RPM) has 191 more torque (in Nm) than 2003 Opel Omega. (209 Nm @ 4000 RPM). This means 2007 Alfa Romeo 159 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Omega.
Compare all specifications:
| 2007 Alfa Romeo 159 | 2003 Opel Omega | |
| Make | Alfa Romeo | Opel |
| Model | 159 | Omega |
| Year Released | 2007 | 2003 |
| Engine Position | Front | Middle |
| Engine Size | 2387 cc | 2198 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 198 HP | 142 HP |
| Engine RPM | 4000 RPM | 5400 RPM |
| Torque | 400 Nm | 209 Nm |
| Torque RPM | 2000 RPM | 4000 RPM |
| Engine Bore Size | 82 mm | 86 mm |
| Engine Stroke Size | 90.4 mm | 94.6 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1755 kg | 1665 kg |
| Vehicle Length | 4670 mm | 4900 mm |
| Vehicle Width | 1840 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1510 mm |
| Wheelbase Size | 2710 mm | 2740 mm |
| Fuel Tank Capacity | 70 L | 75 L |
