OMG, Hayfmr!! 4 h rs. driving in a car with an active alcoholic in denial---this is the stuff that nightmares are made of. Personally, I would rather stick pins in my eyes. Don't forget the serenity prayer.
Seriously, though, her recovery is up to her. I think that it is generous for you to drive her.
You are taking it one day at a time........right..?
very sincerely, dandylion