Approaching the Lexus LX 570, one of the first things you’ll note is its size. This Lexus is no shrinking wallflower; rather it is the very definition of the phrase loud and proud. Now this is not to say it’s gaudily ostentatious in the vein of say, the Cadillac Escalade. It’s just the sheer size of the thing.
Based as it is on Toyota’s formidable Land Cruiser, the LX 570 is one of the last full-size body-on-frame luxury suvs. And, while the carlike attributes that go along with unit body construction are highly desirable, the fact remains, if you’re looking to do some hard-core offroading and/or heavy duty towing, body-on-frame is the way to go.
However, the thing unit body construction has over body-on-frame is weight savings. When all of the mechanicals are attached to the body using subframes, you need less metal. With body on frame construction you’ve got the body, and you’ve got a separate frame (the chassis) to which all of the mechanicals are attached. That’s a lot of weight, and weight is the enemy of both performance and fuel economy.
But hey, anybody shopping in this category looking for 30 miles per gallon is living in a dream.