Is a long neck bigger than a trex?

A long neck, often referring to a sauropod dinosaur like BrachiOSaurus or Diplodocus, is generally much larger than a Tyrannosaurus rex in terms of length and overall size. Sauropods could reach lengths of over 80 feet, while T. rex was about 40 feet long. However, T. rex was more massive and had a powerful build compared to the elongated body of a long-necked dinosaur. So, while a long neck may be longer, T. rex had its own form of impressive size and strength.