"I purchased my 2010 Mazda3 iSport in 10/2012. It has made squealing noises and had a jerky transmission the entire time. I've had it in to the dealership techs about 10 times. They have replaced belts and tensioners, but it still makes the noise. They finally escallated it to a Mazda engineer, who told me the noises were 100% normal. The seats are hard and uncomfortable. The standard tires are horrible in snow and rain. Based on my experience, I would not recommend Mazda to others and I will not own a Mazda again after I unload this lemon."