M18 Hellcat: The 55 MPH Tank Destroyer That Humiliated German Armor The M18 Hellcat was the fastest tracked armored fighting vehicle of World War II — capable of reaching speeds up to 55 mph. But speed wasn’t just a bragging right. It was the core of a uniquely American tank destroyer doctrine designed to stop German armored breakthroughs before they became disasters. Built around mobility instead of heavy armor, the Hellcat relied on positioning, first-shot advantage, and rapid relocation. Arme

The weapon America abandoned: The rise and fall of the tank destroyers