Comment Re:Make it nearly 70 (Score 3, Insightful) 521
A lighter truck just cannot do the same work as a heavier truck. Even if it were made out of theoretical indestructible materials. Modern trucks have had engines and bodies capable of hauling/pulling loads many times greater than they can effectively stop. Weight is about STOPPING a load and trailering it in a stable fashion. Even if it had an unlimited energy drivetrain and was built with theoretical indestructible materials, a light truck will get pushed down the road or thrown into a ditch by an unstable load if it doesn't have the weight on top of the tires. Lighter truck = less work done safely. Period.