Our 2008 Lucerne when you are driving for example on an interstate and when you go over a bridge or off the bridge(change of consistency in road) it bangs in front end (with whatever tire hit the change of in road) It bangs hard almost like you would bend a rim. I never experienced this before in any other car.
GM Tech Tip: Clunk Or Thump Noise From Front Suspension (brakeandfrontend.com)
[Buick Lucerne Clunking noise when I drive over bumps Inspection Costs (yourmechanic.com)]
(https://www.yourmechanic.com/estimates/buick/lucerne/clunking-noise-when-i-drive-over-bumps-inspection)