So here's an idea. Conventional intelligence was off by quite a bit, spurring the allies to overproduce tanks (which was possible due to the absurd American industrial capacity), which then allowed the allies to cleanly overwhelm the order of magnitude fewer tanks they actually came in kinetic contact with.
In case anyone is interested in the numbers, USA produced in the region of 50,000 Sherman tanks during the Second World War. 5-10x more than Germany. Plus the British tanks. It didn't take all that long to reach Berlin!
