Bought a 2005 Ford 500 AWD sedan. Has 225/55-18 Pirelli P-6 tires on it. Vehicle has 35000 miles on it and the tires are worn over half way. Decided to start a search for new tires and see what was available. Come to find out that only Pirelli has that size tire. Called discount tire and they could get them in a couple of days. No where else except internet. Anybody has a blowout better have a good spare because you may be driving on it for awhile. The dealer even had to order them if needed. Hope that choices get a little better when time comes to buy them. Anybody know of other tires that would fit and work properly?