2003 Opel Vectra vs. 2002 Opel Omega
To start off, 2003 Opel Vectra is newer by 1 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, 2002 Opel Omega (148 HP @ 4000 RPM) has 25 more horse power than 2003 Opel Vectra. (123 HP @ 3250 RPM) In normal driving conditions, 2002 Opel Omega should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2002 Opel Omega weights approximately 27 kg more than 2003 Opel Vectra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2003 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 @ 1700 RPM) has 20 more torque (in Nm) than 2003 Opel Vectra. (280 Nm @ 1500 RPM). This means 2002 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra. 2003 Opel Vectra has automatic transmission and 2002 Opel Omega has manual transmission. 2002 Opel Omega will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Opel Vectra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Opel Vectra | 2002 Opel Omega | |
| Make | Opel | Opel |
| Model | Vectra | Omega |
| Year Released | 2003 | 2002 |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 123 HP | 148 HP |
| Engine RPM | 3250 RPM | 4000 RPM |
| Torque | 280 Nm | 300 Nm |
| Torque RPM | 1500 RPM | 1700 RPM |
| Engine Bore Size | 84 mm | 80.1 mm |
| Engine Stroke Size | 98 mm | 82.8 mm |
| Engine Compression Ratio | 18.5:1 | 17.5:1 |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1633 kg | 1660 kg |
| Vehicle Length | 4830 mm | 4900 mm |
| Vehicle Width | 1800 mm | 1790 mm |
| Vehicle Height | 1470 mm | 1510 mm |
| Wheelbase Size | 2610 mm | 2740 mm |
| Fuel Tank Capacity | 60 L | 75 L |
