Driveline is a good guess....are these vibrations felt at all speeds above 40KM?....Ask the dealer to swap out your wheels and try it,preferably over a stretch of road you know it vibrates on....It could be something as simple as out of round tires, balancing,a whack to the driveshaft(s)....wheel bearings,callipers that are not fully releasing....do you feel the car pulling to one side? the more info you provide the easier it becomes to diagnose ....
2016 MKC, Reserve. White Platinum Met Tri-coat.
Leather ebony interior.
2.3L GTDI ecoboost.
6-speed select SHIFT auto trans.
20" premium painted Alum wheels.
Equipment Group 300A.
Silver rust protection.
Xzilon exterior paint protection.
Weather Tech front and rear liners ....the rest is ALL Lincoln.