If you never come close to your limits of adhesion you will never see any differences. Of course if you unexpectedly hit ice or snow or even wet pavement you might find out about the limits of adhesion the hard way.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.