Yes they are all the same minus the packaging details. And like I said there's now the exception with the redesigned 2015 Gordon which still carries the same TS number.
Furthermore, the series of engines pre-dating the T series from 1992-2002 which featured things like Edward, Henry, James, and Percy with different cars did not use a numbering system.
Furthermore, the series of engines pre-dating the T series from 1992-2002 which featured things like Edward, Henry, James, and Percy with different cars did not use a numbering system.