I said it because you reverted some other minor edits as well from my revision which did not require to be reverted. Regarding the timeline, I do consider it relevant in the Mirage-based section, but within its own subsection, with a section header above, and below the text. Otherwise, it would look like an awkwardly positioned navbox in the upper half of the article, when everyone would expect it at the bottom. Anyway, I do appreciate the fact that you created it and I believe it does provide a better understanding of the subject. 

The "Marketing" term does also refer to how the vehicle was commercialized in a specific market and not only to advertising or promoting. I do not see any problem with using it instead of "Market", which is rather a noun than a verb in this context. It is also used in other articles as well and it seems that it is accepted.

Regarding the generation numbers, I remain to my opinion that they should be used along with years, but, at least for the moment, I will stop doing edits related to this aspect. I consider them totally acceptable as long as they can be referenced. I have found this Lancer brochure, which mentions on the last page that there have been nine generations of development up to the current model. Regards,