The 4Runner is one of a trifecta of seemingly timeless Toyota SUVs that subscribe to theory “if it ain’t broke don’t fix it.” And it’s this one that possesses the most off-road worthy chops.Introduced in 1984 and last redesigned in 2010, this 5th generation 4Runner is one of handful of body-on-frame SUVs left in the marketplace; even Land Rover doesn’t build them like this anymore. Preferred for its stoutness and broader off-road capabilities, ladder frame construction also weighs more and thus dings fuel economy as compared with a unibody platform - the way the vast majority of cars and SUVs are made today.