Thanks Stan for the insightful reply! And nugget too 
I didn’t know both websites, they look interesting.
We are thinking small combi/limousine like a Kia Ceed sw or a Skoda Fabia Combi, those kind of car. I agree that petrol car make more sense. Is funny I know a lot about engines, but I have no clue about models and make of cars.
Thanks for the offer, that’s really nice of you! For the moment we are not stressed out to buy a car, I’m just gathering informations.