DETROIT — Fiat Chrysler Automobiles and the United Automobile Workers union reached a tentative agreement on Tuesday on a new contract that could establish a pattern for labor deals at the other two American carmakers, General Motors and Ford.
The once-unthinkable big Cadillac SUV has become indispensable. Caddy unveils the 2015 Escalade in New York this evening, promising that it'll be in showrooms the first half next year. The General Motors luxury brand isn't providing price or fuel …