Did my car cave in?

 

Looks normal height to me. What makes you think the rear is low?

 

normal：


My LS430：（My front is newly replaced）

 

what is your specific car model? Do you have photos of your car beforehand that shows the back at a higher ride? Do you have anything abnormally heavy in the trunk/back seats?

 

Yours looks slightly lower at the back than mine but not by much.
You need to take the photo in the same way as the one you are comparing it to.
In the comparison photo you can see under the car and it is on flat tarmac.
In your photo it was taken with the camera higher up and is on rough ground.