On the TX, TX-L and TZ-G trims having features of each other, that guy amepiga guesswork mbaya sana. Those are called trim levels. Every trim level has standard features and optional features. Different vehicles of the same trim level will have varying options, according to the previous owners preferences when he bought from the dealership. That's the reason for it. You pay extra for those options, so one buyer may not mind paying for all the features, while another buyer might be more conservative on options, yet both of them would be buying the same trim.