Anyone had problems with tire wear? I just bought this 06 with 28000Km on it, the tires looked almost new, then I drove it to Los Angeles and back last week, putting about 5000Km more on it, the tires have worn noticeably, I'd say about 20%. Some of the states I drove through allow studs, which causes wear on the road surface, producing a very coarse texture which will wear down poorly aligned tires quickly. I was reading another Mazda forum, mostly UK Mazda5 owners, a lot of complaints about an unresolveable alignment issue that causes the tires to wear extremely quickly, usually on the inside edge. Although the car seems to drive straight, at between 100km/h and 120km/h there is a very loud howl that comes from underneath the floor that sounds like it's either a wind vibration of the plastic undercarriage coverings, or a tire vibration. Any thoughts?