2013 GTS Coupe
Could simply be a weakened or even collapsed shock - if it's the latter , you can easily test that by pushing each corner of the car down ( makes sure it's on a part of the frame which you can't put a dent in ) and if one of those four tries feels really different than the rest in terms of firmness or bounce-back, you have a bad shock . The reason I bring that up is the " low rider " comment ; a collapsed shock will likely manifest itself in that kind of symptom . Of course, if not a shock , a bunch of other components in the suspension can cause that , from broken bushings to loose bolts at the control arms connections, etc.. Believe it or not even though it's a Maserati, many repair chain shops like Midas can put it up on a hoist and check all that out for you at no cost . They won't be able to fix it, but at least you'll narrow down what it is that's wrong .