Pls i have a budget of 800k.i like hyundai and opel vectra and astra but heard the parts ar not available and d opel ecotec engein is trouble some .pls advice me on d best model and year to by in d opel,or other good brand to buy with my budget.

I think you should go for Nissan product, maybe the Almera 1998 model or Primera 1998/99 model
This Cars are good for beginners like us

Buy the Toyota Camry models, trust me, you wont regret it.

Buying a car is a relatively short process compared to maintenance, which is continuous as long as the car's being used. Look out for a car with readily available parts. A good pointer can be common nature of the particular make and model being used by others. Dat would tell u dat if yours has a problem, u won't be alone and problem would be solved easily.

Call me if you are interested in this
https://www.nairaland.com/907962

The Nissan Almera and Primera are great buy option.
You do get a 1996 Camry with your budget and do be sure you can never go wrong with a Camry.