General Motors announced record earnings today, disclosing its Q4 2021 results. 2021 full-year earnings include a net income of $10 billion, EBIT-adjusted of $14.3 billion, net income margin of 7.9%, EBIT-adjusted margin of 11.3%, EPS-diluted of $6.70 and EPS-diluted-adjusted of $7.07. The automaker’s full-year net income, EBIT-adjusted, EBIT-adjusted margin and EPS measures are all records. And in a letter to shareholders, General Motors CEO Mary Barra disclosed the total amount of Chevrolet Silverado EV Reservations, at over 110,000. “More than 110,000 Silverado EVs are reserved so far, incl…