Buying advice Cayman

Hello people, for years I dream of a Porsche since I have always liked the form of the sound of Porsche sports car best but I am when it goes into detail not without a true car-provi, so you could perhaps help me further or strengthen me in my purchase wishes. What I imagine. -Porsche Cayman S -Year of construction from 2006 -Price up to approx. 40000 -Colours Outside Black or White Inside Black -Xenon Headlights -(min.)18inch rims -Klim aautomatik -sports seats My questions about it. -the ca. maintenance of such a car (taxes ect)? -Where should I buy such a car ? -would the warranty extension be worthwhile? -Are there any “diseases” that often occur at the Cayman? -Should I buy a winter car to spare it (your opinion). If you have any more questions I should ask myself she writes to me or tells me what else I should think of. I am very happy about your help and hope he will help me. r can continue to help me.