In Reply to: How much more would 19'' tires cost over 18'' ones posted by ml on November 14, 2000 at 22:35:21:
Anyways, looking at Michelin Pilot Sport
255/40R18 = $288
255/40R19 = $338
You're going to have a harder time finding the right tires in 19s as they are not nearly as common, not yet anyways. But the cost difference is maybe $200 US on a set of OEM michelins. Of course other brands may vary less or more.