I think they will at least wonder why their choice of purchase costs 30% less than the previous model. its going to be an “omg awesome deal this shop doesnt know what its selling!” followed by an “oh what the? i dont think this is what i wanted. is this really the fastest model?”
eventually even the uninformed buyer will come to terms with the name change as he will at least enjoy a moment of satisfaction for having a top bin product for such a bargain.