If the man is driving, who is sitting on the co-pilot seat? The wife or the mother?

[postempestas]

Definitely the wife.

The mother first.

[Ez-Bri-Z]

Whoever called "shotgun" first or touched the door handle first. I dont make the rules, we all just have to follow them.

[Andres77]

The front passenger is for the wife.
If the wife offers it to the mother-in-law out of her own free will that's fine.
But if he's not a mommy's boy he should expect his wife to be beside him.

[God_of_Thunder]

The wife

My mother and I don't get along, so she can take her own car.

[NathanDavis]

isn't Jesus the co-pilot?

[pigoat]

First come first served

[Feelicks]

Luggage goes in the back. Doggo sits up front

[Dinosaursandanime65]

Daughter?

[Tstrbrainer]

Nah, the mistress