As gas prices head for $4 a gallon—okay, they're already past that in California—every automaker is on a quest for fuel economy. BMW brought the 328d to the New York Auto Show with an impressive 45-mpg (highway) claim.
Of course all that really matters is how it performs, and the BMW 328d should be fun to drive, with 0–60 mph in around 7.2 seconds. That may not be screaming fast today, but it would have been a few years ago. Besides, with a turbodiesel, there will be bags of torque down low, and there's always the possibility of a M-diesel. BMW is already planning other diesel sedan (check out the European catalog) including a 5 Series sedan powered by a turbodiesel six.
Back to the 328d: The only available transmission is an eight-speed automatic, and the diesel engine will carry a $7,000 premium over a base BMW 3 Series. But with about a 30% improvement in gas mileage, it shouldn't take that long to make up the difference; all you have to do is drive.––Paul Duchene