. . . The new 730i’s 2.0-liter turbocharged four-cylinder gasoline mill has an 82mm bore and 94.6mm stroke, which means it’s based on the B48 family of engines found in a number of models in the BMW Group, ranging from the MINI Cooper JCW to the latest BMW 225i and 330i in Europe, as well as the upcoming 740e PHEV – sans the electric motor. . . .