That's available on the Escape, Corsair and Bronco Sport siblings. But not the Maverick. And actually, I don't think I want that feature based on the reviews. My eyes, Google Maps and Waze tell me the speed, and I adjust the adaptive cruise myself. Click, click.
Even if it's accurate, how far above the speed limit I set is personally very dynamic. Some places I do the speed limit, or plus 2. Or plus 5, or maybe even +10 on some 60 MPH freeways.
And even on the same stretch of highway, I may cheat up and down based on known speed traps, traffic changes, etc. Seems like I hear more complaints than praise about it. My buddy has a Bronco Sport and says he doesn't find it practical. But YMMV based on your usage patterns.
My 2017 Toyota displays the speed limit, but it doesn't 'adjust' my speed based on the speed limit. It's a nice feature, but I definitely don't want my car to decide what speed I drive - especially in NC where in a number of locations, the speed limit signs were upgraded to 60 mph, but the road is still coded as 55 mph.