 Bought my P5 brand new and loved it up til now.  At 110k miles the overdrive gear went out now I have to buy a new transmission.  All maint done like clockwork, drive like an old lady, so I don't get it.  Mazda reliability has always been good.  Most say I must have got a bad transmission or early mechanical failure due to wear.  I do put about 18k miles/yr commuting, but geez, this is not acceptable.  Toyota 4wd truck w/ 140k and NO problems! 