Hi RocksAnn and welcome to the forum.
Your post kind of got my attention, "How do I handle my husband". Well, I think if any of us could handle our husbands and control their drinking, we wouldn't be here. It's just not possible.
What you can do is handle yourself. Take care of you. The cars are in your name, don't let him drive them. If he takes them, then I would think he would be responsible for anything that happens but being married and if you both own the home, I am sure legal issues would insue. I am in a situation now that is long and too involved to get into but bottom line is, $hit happens when they drink and drive and its not good.
You need to protect yourself and take care of you and can I mention, always read the fine print on any paperwork you have.
I am sure this wasn't much help but its how I see it. Read the stickies (power posts) on the Al-Anon and Nar-Anon forums and the posts in general, I am sure they will be helpful.
Take care.
Many hugs,
Debbie