Virtually any vehicle can be modified with an air intake sealed below the waterline and a snorkel. Current shape (and old shape) Mitsubishi L200 4wd pick-ups have very high air intakes, at the tops of the bonnets, so are suitable for driving through floods. They are also the smallest and most car-like to drive of the current crop, and are often discounted because they are not popular due to the fact that the 4-door versions devote much more space to passengers than to load. In my experience they have the toughest drivetrains of all pick-ups. But not the best engines.