E 85 – Car purchase recommendation

Hi, I’m looking for a cheap car for max 1500€. Which should cost as little as possible during maintenance so fuel moderate! At 1,50€/liter Super a bit much. Nen Diesel I have also thought about but to compare: 1. are there series cars that drive with E85? Without retrofitting afterwards??? 2. can you dilute E85 with petrol and fill it in any gasoline?? 3. Go carburetor engines with E85? 4. is a 16V or 8V a difference from the compatibility??? Thank you