Mazda RX 8

Hello guys. It’s about the Mazda RX 8. I find it really great from the look and the driving behaviour and would now have the opportunity to get to a good one quite cheaply. However, since I have “no” experiences with this vehicle, I would have some questions in advance. First of all, the exact data: Mazda RX 8 / Built 12.02.2004 / 192 PS / Euro 4 Questions: – Since he has no displacement indication in the usual sense, how are the taxes measured and how high are the taxes – How high is the consumption really (indicated it is about 11.5 liters) but I’ve already heard something of 15 – 16 liters, and that on average – is that true ? – How are the experience values with Macken / problems – Is here one or more things known, which break quickly or / and more often, which are expensive ? I know many question, but also everything very important, “”before””” one buys such one. I am everyone for as exact as possible information / A Greetings, Christian