Interested in what was weak for you. This is what I could find on the 2021 Sienna. Are you more old school and like the physical buttons on the side? Did something confuse you in the SYNC interface?interface on 12" screen: weak (compared to 2021 Sienna)
Once someone enables Apple Car Play or Android Auto it is literally the same experience across the board.
With physical buttons on the sides of your screen you are limiting yourself to future software enhancements.
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