Centurion doesn't make bridges collapse at the thought of carrying one. Centurion doesn't move 5kph. Centurion doesn't cost a lot (for a tank).
<3 Centurion (Pwnturion, really!)
Canceled, sadly, and not American to begin with (but they are our baseball cap anyway!)
Those are the CRV-7, by the way. Armor piercing 70mm rockets, not your normal kind. More accurate than a 30mm cannon and can punch through a 3 ft concrete wall.
Dual MGs, and the missiles are dual anti-air and anti-tank weapons.