 Mazda's design engineers have the heads in a very dark hole. The turbo charger they put in the vehicle does not lubricate itself and fails quickly. At 70K the timing belt has stretched and failed causing a complete rebuild of the engine (BTW, Mazda won't cover any of that, wait until you get to deal with their warranty people). Mazda has design a vehicle that is very noisy inside, bad visibility from anywhere inside the car, terrible air-conditioning, the car rides like a stage coach, and worst of all Mazda does not back its warranties and hides from its responsibilities concerning its products....buyer beware