This.A quick look shows that $250 being the “trade in” value, private party resale is $1,000-$1,500 and a quick look of what’s available from dealers shows them in the $3,000 to $7,000 range. I’d tell the insurance company they need to do better than less than friggin scrap value. Heck, my brother in law just told me they’d give him $900 for both his crap box Nissan that’s living on head gasket in a bottle and a questionable S10.
They have to return your mother to where she was before the accident… That is, with a vehicle in good condition of that same year and approximate miles. So find three examples of her vehicle at current market price and submit those to the other insurance company as comps. Be sure to print the online costs and don't accept less. If they balk, a strongly worded letter using the words "bad faith" along with "made whole" should get the right amount. That's for a total.
They are not required to pay salvage, ($250 is an insult) but -again- to restore your mother to where she was prior to the accident.