So today I was driving home on the highway and noticed very substantial vibrations/shaking in the car. Namely in the seats (not so much in the steering wheel). What is the likely cause of this? Side note: I has having some fun in a parking lot the other night and my back end passenger side hit a snow bank. There was zero cosmetic damage but I'm worried this may be the cause of the vibration/shaking. My guess is that maybe the tires are out of alignment? Just wanted to see if any others have faced this issue or had better insight as to what it may be. I'm really hoping that the rear axle didn't get messed up by the snow bank (hit at maybe 8-10ish km/h).
Thank you for any help/advice,