one of the explanations used is the concept called mass shifting which i find very lame. mass shifting is used to explain for example, how starscream's f-22 mode can be more than twice as big as optimus prime's truck mode, but when in robot mode both starscream and optimus seem to be the same size.
anyway, with the transformers movie toyline still very well in production, the are quite few gems which can be found and put together to have a nice feel of scale. here i am showing a set of 4: leader class starscream, voyager class battle blades optimus prime, deluxe class ironhide and scout class breakdown.
ARE THEY IN SCALE???
well, actually almost!
scout breakdown and deluxe ironhide are actually same scale at 1:50
voyager battle blades optimus is 1:42
and leader starscream is 1:61
detailed info:
