Your "bet" is wrong, and Tesla should NEVER return to using the flesh of animals for anything.
Perhaps if you were more aware of the reasons Tesla stopped using animal parts you would not have posted this item, especially given the sample size of your data set. Leather DIRECTLY conflicts with the reason Tesla exists in the first place:
www.cowspiracy.com
And, I suspect you have never questioned the assumptions that your parents raised you with? Thus, I recommend you also watch this video:
"If slaughterhouses had glass walls, everyone would be vegetarian." -Paul McCartney
www.meat.org