In honesty, purchased the 'S' model Sentra brand new. As soon as we purchased it, when my wife would accelerate, or press the brake, my wife would hear a fairly LOUD creaking noise in the middle of the vehicle....like it was ready to break in half or fall apart. We read an exact same complaint about this vehicle, from another carcomplaint.com member/subscriber. Obviously it appears there is a manufacturing defect/was a problem on their Mexico assembly line.