Hertz Global Holdings' ambitious plan to revolutionize the car rental industry with a 100,000 Tesla EV fleet faced significant setbacks due to high repair costs, frequent accidents, and customer charging anxiety. The company's strategy, which also included a nationwide charging network and partnerships with Uber, was undermined by Tesla price cuts, leading to a devaluation of Hertz's EV fleet. Operational challenges and leadership disagreements further complicated the situation, prompting Hertz to shift focus back to gas-powered vehicles and seek new leadership with operational expertise.