I get a minivan vibe with the rear and side profile of the GLS. Rounded soft inflated look with a lower frumpy rear. (see video)
The BMW looks more aggressive all around. The GLS/GLE has a very non threatening and vanilla look about it. I test drove a GLE450 and it was very disappointing. The entire vehicle felt budget built and cheaper made that the previous model. Plastic vent dials in the middle of the dash, etc... Power was blah compared to the 40i.
I believe these are GLS non AMG body kit models.
GLS driving video