Rexmundi
I was not sure if you were joking on that one but thinking about it I suspect your statement is correct at least for a bare tyre (no fairing/spat).
I'm thinking that the magnus affect would create a lower pressure under the spinning tyre and hence create a down force which in turn creates a requirement for more lift from the wings and thus more induced drag.
Mind you I doubt it is measurable in the real world, but an interesting concept none the less, thanks.
