actually mazda has been using weight reduction strategies on all there new models.... it was first use on the mx-5 miata as they wanted the weight increse to be as low as possible... they then did it for the mazda2 and then the new mazda6 which we don;t yet have in t'dad.. the new 6 is bigger than the outgoing model yet actually weighs less.... check it out..
its expected that this new model 3 although bigger woul not have a weight increase over the existing model
