BMW has experimented with four-cylinder models in the U.S. before with limited success. At the time, Americans didn't buy the idea of a luxury-branded car with such a small engine. BMW bailed on the idea along with most other luxury brands with a few exceptions. Now a Bloomberg report says that BMW is reconsidering four-cylinders for the U.S. This time, however, it's not by choice.

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BMW May Use 4-Cly. Engines To Meet U.S. Fuel Economy Rules