2004 Alfa Romeo 156 vs. 2001 Opel Omega
To start off, 2004 Alfa Romeo 156 is newer by 3 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 5,666 cc (8 cylinders), 2001 Opel Omega is equipped with a bigger engine. In terms of performance, 2004 Alfa Romeo 156 (113 HP @ 4000 RPM) has 12 more horse power than 2001 Opel Omega. (101 HP @ 4400 RPM). In normal driving conditions, 2004 Alfa Romeo 156 should accelerate faster than 2001 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 2004 Alfa Romeo 156 weights approximately 107 kg more than 2001 Opel Omega. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2001 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 2001 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, 2001 Opel Omega (447 Nm) has 172 more torque (in Nm) than 2004 Alfa Romeo 156. (275 Nm). This means 2001 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 | 2001 Opel Omega | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Omega |
| Year Released | 2004 | 2001 |
| Engine Position | Front | Front |
| Engine Size | 1969 cc | 5666 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 113 HP | 101 HP |
| Engine RPM | 4000 RPM | 4400 RPM |
| Torque | 275 Nm | 447 Nm |
| Engine Bore Size | 82 mm | 99.2 mm |
| Engine Stroke Size | 90.4 mm | 91.9 mm |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1405 kg | 1298 kg |
| Wheelbase Size | 2550 mm | 2840 mm |
| Fuel Tank Capacity | 63 L | 60 L |
