Here some old footage of Abram tank prototype:
1. MBT-70, The Great Grandfather of Abram and Leopard Family.
2. XM-1 Chrylser, Abram's father.
3. XM-1 General Motors, Abram's Mother.
4. M1A1 early Abrams... the older Brother.
5. M1A2. the current Abram.
6.M1A2 Tusk. When Abram Use Kevelar Armor.