I hope that this isn't a terribly stupid question, but someone told me that it was a terrible idea to have different tire brands/tread styles on the car. Is that accurate? I was checking online for tires at tirerack, saw the Conti's rear for $200 each which is reasonable, with $135 for fronts, but there is a brand called Kumho for the fronts at $85 each, and gets great reviews, better than the Conti's. Apparently, the Kumho's, however, do not make the rear 19 inch version which is much rarer to be produced. I was thinking why not put them together, but the tirerack.com guru strongly recommended against it. I'm not remotely cheap on things, but I only need the tires for 14K miles left on lease, so I don't mind enquiring. Since the front axle tires are 18 inches and rear 19 inches, they don't match to begin with, so am I wrong in that having different tires if they are properly installed is not a big deal? I've been told both ways.

Thanks,

Mike