Thanks for taking the time to write this detailed reply. I guess you’re right about the equivocation and I can see the irony :D
Though I have not fully understood yet. Following your example, the two different concepts are …
- in case A, we compare the value of a property (different top speed)
- in case B, we compare the purpose or context-dependend usefulness of an attribute (different types of liquid container holders)
What blocks me from fully agreeing is that still, both are comparisons. And they don’t feel so different to me that I would call them different concepts. When I look up examples for equivocations, those do feel very different to me.
I still guess you’re right. If you (or someone else) could help me see the fallacy, I’d appreciate.