How much money does he get to steal from your precious kids anyway?
Yes. That money could have gone to your kids. Instead it went to buy Xanax and illegal methadone. It ended up in some drug dealers pocket who used it to buy more drugs so he could hook more people on dope.
You could have paid for nearly one semester at a state university with that money.
I'm sure that I misread that you were going to reward him for all his bad, abusive behavior by buying him a car. Right? Cuz that would be crazy. Right? Cuz he could use xanax and kill someone while behind the wheel of said car and not even remember. Your life would be even more devastated than it is now.
Rule number one (and I know you know this): Don't do for an addict, what that addict should be doing for themselves. Including buying them a car so they can drive to the dealers house to pick up their drugs.
That's enabling. And that's part of the disease of codependency.