2016 Buick Enclave is the newer version with some differences, such as the model year and fuel economy.. First of all, there is a difference in model years. The is 2 years newer. And finally, the 2016 Enclave is more fuel efficient; it gets 1 more mpg than the 2014 Enclave. Among similarities are the body structure, starting price, horsepower, ground shadow size, height, and maximum occupancy.