Cadillac is in the midst of a major shakeup. What you'll find in a dealer's showroom during the 2019 model year probably depends on when you visit. The automaker's new XT4 is its smallest crossover SUV, a model that squares off against the Audi Q3 and BMW X1, among others. Its lineup grows during 2019 with the big XT8, a crossover SUV that's...
