It’s not all perfect. If you want to go rock crawling or heavy-duty towing, a traditional body-on-frame (like a Jeep Wrangler or heavy-duty truck) is still king because of its durability and flex.
This is the concept of (Unitized Body) construction. Unlike the old-school "Body on Frame" design—where a heavy steel ladder frame holds the car up—unibody vehicles integrate the body and chassis into a single, cohesive unit. unibok