I think you are right Seamus. But i feel there is one tank in the world wich maybe even better then Abrams series.Merkava 4 from Israel.It is a true multi-role vehicle.Ofcourse it´s main role is the main battle tank of Irael,but it is also an APC,since it can carry eight infantry soldiers inside it.It also has internal 60mm mortar system wich shoots also HE ammunation.Last it can shoot with high angles and its new EL OP fire control system that allows it to shoot even assault helicopters.Here is a link with some information about it.