Well, may be I bought an old used car that the previous owner did not take much care of, but the frequency of failures was quite high nevertheless.
Spare parts was a problem, as the dealer could not provide spare parts for a 4x4 car since it was not commercially sold in the area.
Car stability at high speed is magnificent, especially at curves, however the acceleration is slow for 2.0L engine.
Maintenance of interior electrical parts is not easy, you have to take everything out to change a light.
4x4 Vectra has a completely different design on belts and mechanical parts than the standard Opel Vectra, which makes it very difficult to find used spare parts.
The engine operates at high temperature, and there's constant loss of cooling water, the car would over heat at any climatic heat elevation, which is critical in area with hot climate.
The Opel Vectra requires continuous care and maintenance, and is not suited for people with low car maintenance experience.