By Subrat Patnaik, Sanjana Shivdas and David Shepardson (Reuters) – Tesla Inc on Monday neared $1 trillion in market capitalization as the company founded by Elon Musk received its biggest-ever order — 100,000 electric rental cars for Hertz. Tesla shares were up 7.5% at $978, hitting a new record high Monday, following the order. Shares were also buoyed by news of the company’s Model 3 becoming the first electric vehicle to top monthly sales of new cars in Europe. The news from Hertz comes as Tesla is coping with a backlog of unfulfilled orders for its vehicles and continuing supply chain disr…