Have the alignment checked. Mine was like that when I got it the first few weeks. Once it was aligned, it was buttery smooth.

 

Get some coil overs lol I’m kidding, but yeah my tires hot are at 40psi so about the same as you, and I have to admit it does feel a bit soft but coming from a slammed is350 what wouldn’t right? It’s not too hard to control imho.

 

I haven't had any issues with mine other than if you get behind an 18 wheeler you will get some of the turbulence and will shake the car a bit but it goes away once I pass them

 

Get the alignment checked out again? Could be the road or the wind. I've driven 90+ on the freeway and no issues.

 

Mine is stable as can be at every speed I've ever driven it.

 

I have tried alignment & tire pressures are at 35psi. Tires are good shape. Annoying makes me want to trade the car in. Just doesn’t feel right.

 

Have it checked. I can do 85mph+ and barely touch the wheel.

 

First thing to check would be tire pressures to make sure you'e not over-inflated. Dealers love to do this for some reason when you take it in for service. If tire pressures are OK then it may be worth getting the alignment checked out and corrected.