The MCU2? You won't regret the choice.Looks like Tesla will be recalling 8GB memory cards to replace with 64GB cards.
I'll still upgrade to MCU2 for all around better performance.
Tesla has decided to voluntarily recall certain Model S and Model X vehicles built before March 2018 that are equipped with an 8GB embedded MultiMediaCard (eMMC) in the media control unit because the eMMC may malfunction due to accumulated wear. Our records show that you own a Model S or Model X affected by this recall