Which product innovation was NOT implemented in the M1 Abrams tank design evolution between its original 1980s version and the latest M1A2 SEPv3 variant?

The modern battlefield has seen remarkable product innovations that have changed warfare forever. Among these, the M1 Abrams tank represents one of the most successful military product designs in history. This poll tests your knowledge about how product innovation transformed this iconic American battle tank from its introduction to its current variants. Understanding military equipment evolution offers insights into how product design responds to changing battlefield requirements and technological opportunities.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Active Protection System to intercept incoming projectiles
Depleted uranium armor composite (known as 'Heavy Armor')
AI-powered autonomous driving capabilities
Digital battle management systems for improved situational awareness