Hello, I have some questions about the Porsche Cayenne and would be very happy if you could answer one or the other question: 1.) Is there any better and worse series in terms of workmanship or reliability? 2.) Which engine or transmission versions are better or worse (in terms of defective ones)? 3.) How much does a normal inspection including the parts cost so on average (so that I can estimate the costs compared to Mercedes and BMW)? 4.) G asumbau: Which systems are there for the Cayenne and how high are the conversion costs for this? 5.) Have you already gained experience for a gas conversion? 6.) What weak points should one pay attention to when buying? I play with the idea to take a Cayenne S (about 6-7 years old) and to convert to gas. My alternatives that I would otherwise have in mind: – Mercedes E-Class (from 2006 year of construction with Facelift) – Mercedes M-Class – Lexus RX Does anyone have a lot of this easy comparisons to the Cayenne? These were for now all the questions that have been swirling around my mind all the time. Thank you for reading through or answering my questions.