In addition to the standard plastic parts the Mammoth Edition 1.0 contain also the following sets:
Photo Etched Detail set for M24 Chaffee (OKB)
Photo Etched Side skirts for M24 Chaffee (OKB)
Photo Etched Turret bin for M24 (OKB)
Resin Idler wheel for M24 Chaffee
Choosing the Mammoth Edition 1.0 you are saving around 20% from the cost of the abovementioned sets. The are also available separately.