1991 Opel Omega vs. 2006 Opel Vectra
To start off, 2006 Opel Vectra is newer by 15 year(s). Which means there will be less support and parts availability for 1991 Opel Omega. In addition, the cost of maintenance, including insurance, on 1991 Opel Omega would be higher. At 1,998 cc (4 cylinders), 1991 Opel Omega is equipped with a bigger engine. In terms of performance, 1991 Opel Omega (110 HP @ 5200 RPM) has 6 more horse power than 2006 Opel Vectra. (104 HP @ 6000 RPM). In normal driving conditions, 1991 Opel Omega should accelerate faster than 2006 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Vectra weights approximately 30 kg more than 1991 Opel Omega.
Because 1991 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 1991 Opel Omega. However, in wet, icy, snow, or gravel driving conditions, 2006 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, 1991 Opel Omega (162 Nm @ 4600 RPM) has 12 more torque (in Nm) than 2006 Opel Vectra. (150 Nm @ 3900 RPM). This means 1991 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Vectra.
Compare all specifications:
| 1991 Opel Omega | 2006 Opel Vectra | |
| Make | Opel | Opel |
| Model | Omega | Vectra |
| Year Released | 1991 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 1598 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 110 HP | 104 HP |
| Engine RPM | 5200 RPM | 6000 RPM |
| Torque | 162 Nm | 150 Nm |
| Torque RPM | 4600 RPM | 3900 RPM |
| Engine Bore Size | 95 mm | 79 mm |
| Engine Stroke Size | 69.8 mm | 81.5 mm |
| Engine Compression Ratio | 9.4:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1330 kg | 1360 kg |
| Vehicle Length | 4740 mm | 4600 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1490 mm | 1470 mm |
| Wheelbase Size | 2740 mm | 2710 mm |
| Fuel Tank Capacity | 70 L | 61 L |
