It has about 75,000 miles on it but I've used it for a lot of rideshare driving over sometimes-bumpy roads.

The ride feels really "twisty". I often hear the door seals making noise even over turns over minor bumps. I've had the steering and suspension checked by a couple of shops and everything checks out so I'm looking for the next step.

The maintenance schedule recommends tightening chassis bolts but my sense is shop techs don't really do this. Any guidance here is appreciated

 

There are no frame but subframes. One is under the engine area and the other in the rear of the car which the suspension rods attach to.