Buy or rent a car in Gran Canaria

Hey!

I just arrived to Gran Canaria and will stay hear for the next 3 months or so. I'm looking at baying a car if it's possible to get one for a reasonable price alternative rent one when I need it. Do anyone have recommendations one website to buy or rent a car?

Thank!

To purchase a car in Spain you will need a "fiscal number". The same to insure it. Do you have one?
Have you thought about how you will sell it afterwords?

No, I have t though abut any of those.  Dose your experience say it hard to sell cars?

before you ask about selling ...have you got a number? Without that you need not worry about selling.