Not sure, if it applies to tyres, as due to them contacting the ground (hopefully), there is no true flow around them, as in the sense of the Magnus effect/Flettner Rotor.
A lot of research has been done on the subject by Ludwig Prandtl at the University of Goettingen, Flettners work, was mainly based on this research.
I'm sure you can dig up more informations, if you search the web for it.
Some info can be found here:
http://www.see.ed.ac.uk/~shs/Climate%20 ... Paper4.pdf
http://www.pilotfriend.com/photo_albums/potty/2.htm


