So, about a month ago, I totaled my car when I crashed it into a ditch...All 4 rims had damage of some sort, the front two were in about 4 pieces, but the back two were just bent a little (visually), like if you hit a bad pot hole. When it was getting towed, I noticed the rear wheels were definitely warped, enough where I wouldn't want to ride on them. My question is...are the tires okay? The front two are slashed and I can't use them, but the back two look fine, and had about 200 miles on them when I wrecked, so I'd love to save a couple hundred bucks and use them, but I want a smooth ride.
Is there a way to warp tires like bending the cords or bead or anything like that, should I try to reuse them?

 

Check that the sidewalls are in good shape... Tires should be useable...

I bought a set of GSR rims and tires that came from a car that literally had the back suspension ripped from the car in the wreck, and had no problems at all...

 

I think it's possible for them to be damaged or not. Can't tell by looking at them on the bent rims.

Dismount the tires from the bent rims. If you can see any damage INSIDE the tires, toss 'em.

Mounted on good rims, maybe you'll be able to see them squirm or something? If so, toss 'em. They might not squirm on a balancing machine, they might not squirm until they're loaded by carrying the car's weight. Especially during acceleration or braking.

Find someplace with a Hunter GSP9700 balancing machine (or something like it). It presses the tire against a drum while it's balancing it, sorta like the tire pressing against the ground. That might tell if it's damaged, before you actually start driving on it.