Check the drain holes at the bottom of the doors for debris. You may have water trapped in one of the doors.

The worst that can happen is you spill your coffee hitting a bump. You are overthinking this.

At 100 MPH, you only need to add five drops of oil.

Have you checked if your front right caliper is in good shape?

No, in fact I always find it comical when people blatantly avoid the smallest bumps or potholes in their new car to “keep it in good shape”. Cars are designed with some seriously shitty roads in mind. In the VERY long term, yeah avoiding big bumps will make your suspension components last a little longer, but it’s nothing to consciously worry about.

They don’t come on when you turn on your headlights?

This should probably be in r/legaladvice, but you bought the car from a private party with no warranty expressed or implied, so my feeling is this would be headed to small claims court. Mechanically speaking, the gauge cluster was replaced with one from a lower mileage Corolla. You can’t roll back a digital odometer, as far as I know.

It’s always suggested to replace any suspension components in pairs. I would personally wait if the originals aren’t in such bad shape.

Have you tried vice grips or a good pair of channel locks pliers? What are you planning to do with the fucked threads in the housing once you get it out?

Of course. It may be a hybrid but it’s subject to the same design requirements as any other vehicle. Meaning the whole exterior of the car is designed to get completely soaked with no issues.

Is there a manual release on the inside of the trunk? Would you be able to remove the interior panel from the trunk with it closed? If so, you may be able to reach in and force the latch open.

And get yourself a set of interior clips from Amazon. You’ll probably break a bunch removing interior trim pieces.

Rubber mallet and a pry bar. They are under a lot of tension so it takes some elbow grease to get them in place.

You’ve single handedly discovered gravitational theory!

That is most definitely your fuel filler pipe and definitely needs to be replaced. The shock is just superficial damage and is fine.