Evilwally says gas mileage in both are going to suck because you have a fat wife and a fat mother both of which we know are hard on gas. I would invest in some heavy duty shocks for the passenger side of the new car. If I were you a would invest in a wheelbarrel or a F250 flatbed. The wheelbarrel will get better gas mileage but go though tires faster than the truck. As far as the 850 or V40 get tinted windows because youll look like a fag in either one.

Hope this Helps
Wally