2005 Opel Vectra vs. 1999 Opel Omega
To start off, 2005 Opel Vectra is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Opel Omega. In addition, the cost of maintenance, including insurance, on 1999 Opel Omega would be higher. At 2,497 cc (6 cylinders), 1999 Opel Omega is equipped with a bigger engine. In terms of performance, 1999 Opel Omega (131 HP @ 4500 RPM) has 32 more horse power than 2005 Opel Vectra. (99 HP @ 4000 RPM) In normal driving conditions, 1999 Opel Omega should accelerate faster than 2005 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Omega weights approximately 165 kg more than 2005 Opel Vectra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 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 1999 Opel Omega. However, in wet, icy, snow, or gravel driving conditions, 2005 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, 1999 Opel Omega (235 Nm @ 2200 RPM) has 5 more torque (in Nm) than 2005 Opel Vectra. (230 Nm @ 1500 RPM). This means 1999 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Vectra.
Compare all specifications:
| 2005 Opel Vectra | 1999 Opel Omega | |
| Make | Opel | Opel |
| Model | Vectra | Omega |
| Year Released | 2005 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 99 HP | 131 HP |
| Engine RPM | 4000 RPM | 4500 RPM |
| Torque | 230 Nm | 235 Nm |
| Torque RPM | 1500 RPM | 2200 RPM |
| Engine Bore Size | 84.1 mm | 80 mm |
| Engine Stroke Size | 90 mm | 82.8 mm |
| Engine Compression Ratio | 18.5:1 | 22.5:1 |
| Fuel Type | Diesel | Diesel |
| Acceleration 0-100mph | 13.9 seconds | 12 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1510 kg | 1675 kg |
| Vehicle Length | 4830 mm | 4900 mm |
| Vehicle Width | 1800 mm | 1780 mm |
| Vehicle Height | 1510 mm | 1460 mm |
| Wheelbase Size | 2840 mm | 2840 mm |
| Fuel Tank Capacity | 60 L | 75 L |
