I would expect a vehicle of the class of a Mazda6 would not suffer such a significant fail after traveling just 126,000 Km.

Definitely leaves a sour taste and dissuades me from considering the purchase of another Mazda.

I bought a 2010 Mazda 6 from an owner in NYC. At 25000 miles it needs a new transmission. The gears slip when accelerating. I feel very annoyed that the car has been taken care so well but it suffers that big problem.