2003 Alfa Romeo 156 vs. 2001 Opel Omega
To start off, 2003 Alfa Romeo 156 is newer by 2 year(s). Which means there will be less support and parts availability for 2001 Opel Omega. In addition, the cost of maintenance, including insurance, on 2001 Opel Omega would be higher. At 2,172 cc (4 cylinders), 2001 Opel Omega is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 156 (138 HP @ 6500 RPM) has 30 more horse power than 2001 Opel Omega. (108 HP @ 4000 RPM). In normal driving conditions, 2003 Alfa Romeo 156 should accelerate faster than 2001 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 2001 Opel Omega weights approximately 205 kg more than 2003 Alfa Romeo 156.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2001 Opel Omega (280 Nm @ 1600 RPM) has 117 more torque (in Nm) than 2003 Alfa Romeo 156. (163 Nm @ 3900 RPM). This means 2001 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 156.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2001 Opel Omega | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Omega |
| Year Released | 2003 | 2001 |
| Engine Position | Front | Front |
| Engine Size | 1747 cc | 2172 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 108 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 163 Nm | 280 Nm |
| Torque RPM | 3900 RPM | 1600 RPM |
| Engine Bore Size | 82 mm | 84.1 mm |
| Engine Stroke Size | 82.7 mm | 98 mm |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1390 kg | 1595 kg |
| Vehicle Length | 4450 mm | 4900 mm |
| Vehicle Width | 1750 mm | 1790 mm |
| Vehicle Height | 1400 mm | 1510 mm |
| Wheelbase Size | 2600 mm | 2740 mm |
