I’ve followed the threads on the aftermarket CarPlay adds and while they work there are quirks.I don't think they thought or even tried to out designed Apple, Goggle or Android. They integrated Apple Car Play and Android Auto into models like the RX, UX, LS, ES, RC and GX during their mid cycle refresh and came to the conclusion basic integration was not good enough. So they established a new division to created the new system incorporating Apple, Goggle and Android which is very different including over air updates with the ability to evolve as technology changes. I agree that Lexus/Toyota was way behind other companies which was frustrating but didn't effect our sales. We have a local company that adds Apple Car play into older LX's, GX's and the RX