2002 Opel Omega vs. 2004 Opel Vectra
To start off, 2004 Opel Vectra is newer by 2 year(s). Which means there will be less support and parts availability for 2002 Opel Omega. In addition, the cost of maintenance, including insurance, on 2002 Opel Omega would be higher. At 2,497 cc (6 cylinders), 2002 Opel Omega is equipped with a bigger engine. In terms of performance, 2004 Opel Vectra (165 HP @ 5400 RPM) has 17 more horse power than 2002 Opel Omega. (148 HP @ 4000 RPM) In normal driving conditions, 2004 Opel Vectra should accelerate faster than 2002 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 2002 Opel Omega weights approximately 110 kg more than 2004 Opel Vectra.
Because 2002 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 2002 Opel Omega. However, in wet, icy, snow, or gravel driving conditions, 2004 Opel Vectra, 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, 2002 Opel Omega (300 Nm @ 1750 RPM) has 34 more torque (in Nm) than 2004 Opel Vectra. (266 Nm @ 2500 RPM). This means 2002 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Vectra.
Compare all specifications:
| 2002 Opel Omega | 2004 Opel Vectra | |
| Make | Opel | Opel |
| Model | Omega | Vectra |
| Year Released | 2002 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 1994 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 165 HP |
| Engine RPM | 4000 RPM | 5400 RPM |
| Torque | 300 Nm | 266 Nm |
| Torque RPM | 1750 RPM | 2500 RPM |
| Engine Bore Size | 80 mm | 86 mm |
| Engine Stroke Size | 82.8 mm | 86 mm |
| Fuel Type | Diesel | Gasoline |
| Acceleration 0-100mph | 11.3 seconds | 9.1 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1485 kg | 1375 kg |
| Vehicle Length | 4900 mm | 4600 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 2640 mm | 2740 mm |
| Fuel Consumption Overall | 5.6 L/100km | 9.2 L/100km |
| Fuel Tank Capacity | 75 L | 60 L |
