I've been enjoying asking some automotive engineering theory questions here on this site, such as factors that affect braking distance, and whether accelerating faster affects fuel economy. They've yielded some high quality, informative answers that I've learnt a lot from. The theme of all my questions have been generic, rather than model-specific.
Currently I haven't answered many questions, partially because I'm still very much learning, but also because I have no interest in questions like "How to fix the rough idle on my 2004 Toyota Camry". So whenever I actually look at the recent questions list, and half or more are those model-specific questions, I'm quickly disinterested and move on.
So what I'd really like is to be able to filter out all those model-specific questions, and just see the exciting stuff - the general theory questions.
What this would mean, I'm guessing, is adding a tag like model-specific, then being able to exclude them in a search.
Alternative - "theory" tag
As Bob Cross and Shog9 has mentioned, instead of adding a model-specific tag for the purpose of exclusion from my searches, a tag like theoretical or even just theory could be added, for which I'd just search for normally. These would be questions that heavily relate to automotive engineering concepts, and would/should have maths and formulas as part of the answer.