GLC63M3

I've just thought of this today when pulling into my alley with my Chevy Equinox for work - the rolled curb / end of the alley is REALLY harsh. I need to double check the other side of the alley, but anyone have a best way to measure ground clearance on the actual curb w/ the incline of it? I see the coupe is listed at 3.6" I am hoping I will not have to rethink my order.