Buick Enspire is to be based on Cadillac XT4 plaform
There is a possibility that the new Buick CUV, named the "Enspire", will be based on the same Cadillac XT$ platform:
Future Buick Crossover Based On Cadillac XT4 Platform Coming | GM Authority
For now it may be an exclusive model for China, which is Buick's largest market. And an EV version may be in the works, too.