Navigator. Car seats and equipment eat too much real estate. E53 won't cut it, except in an emergency...if you can get the car seats to fit widthwise.

That is a horrifying game of Tetris unto itself.

Don't let them trick you (or your wife) into a minivan...front wheel drive, no fording ability, can't hop curbs...sounds terrible. Most of them cost close to an Expedition and get nearly as bad mileage anyway.

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2001 E53 3.0 5pd