If you were Bentely and needed to name your new SUV, what would you do? Look to the core market, that's what. Or, in this case, the two core markets. Pick the name of a well know footballer, for example Marcus Bent, then pick the name of a well known rapper who is currently all over the news. Let's say Tyga.
Join the two names together and what do you have? The new Bentayga. Job Done. Here's one spotted earlier.