The 2019 Cadillac XT4 is the long-awaited new vehicle into Cadillac's notable SUV lineup. It's sized between luxury segments with an emphasis on passenger comfort, even in the back seats, rather than cargo space alone. The XT4 is super tech-friendly, with standard Apple CarPlay, four USB ports (including a new type C-one), Android Auto, and the Cadillac 8-inch touchscreen. The 2019 XT5 is a similar model and has a 310-horsepower V6. This compact SUV is roomy and comfortable and distinctively Cadillac in its outward design. The XT4 allows more room for passengers than Cadillac’s XT5. However, the XT5 affords more cargo room. Both models have a max towing capacity of 3,500 pounds with the towing package. The XT4 has 237 horsepower with a 2.0-liter engine and an estimate of 30 highway mpg. While the XT5 boasts a 3.6-liter and 310 horsepower but has a bit less fuel efficiency at 26 mpg on the highway.