Even with its 240-hp, 2.0-liter turbocharged four-cylinder gasoline engine, the BMW 328i delivers surprisingly frugal fuel economy. The 28 mpg overall we mea­sured is among the best in its class.

Fuel economy has yet to be officially rated, but BMW says that preliminary forecasts of the 328d’s fuel mileage reveal that the car should reach 45 mpg on the highway. City mpg numbers have not ...