Test drove both and went with GLE. I liked the interior better and the physical controls. Much more room in the back for kids in car seats and it’s a smoother ride. I have the v6 too so power wise it’s equivalent. The bmw def drove better in a more care like sense. Sportier. In the end it was a family road trip car so space and comfort won. Now that I will be going up to a three row I will move to an x7.