Yeah me too.
Because that was the reason why silverbolt and rhinox were terminated on beast machines.
Without the transmetal bodies, they weren't able to survive from the virus gas that the vehicons used on the maximals. That's why cheetor, optimus, rattrap, and blackarachnia were the ones were able to survive. :(
instead of destorying them completely, just what it did to silverbolt and rhinox, it only destroyed their transmetal bodies and only turn them to their original beast modes. :(
And speaking of "transmetal", do you think that term is copyrighted?