Find the latest episode of "This Is Uncomfortable" here. Listen

Automakers cut cylinders from engines to meet fuel standards

Alisa Roth Aug 30, 2011
HTML EMBED:
COPY

Automakers cut cylinders from engines to meet fuel standards

Alisa Roth Aug 30, 2011
HTML EMBED:
COPY

Tess Vigeland: A new version of the ultimate driving machine will make its debut on dealer lots across the country this fall. BMW says the sedan will have all the performance and styling you’d expect of a top luxury vehicle. But the engine? 4-cylinders — something that hasn’t been seen on a BMW in this country for more than a decade. And BMW’s not the only one paring down.

As Marketplace’s Alisa Roth tells us, a combination of consumer demand and government standards are driving the changes.


Alisa Roth: Twelve years ago, BMW stopped selling cars with 4-cylinder engines in the U.S., because the company felt that to be seen as a true premium brand here, its vehicles needed at least 6-cylinders.

But times have changed. American drivers — and the American government — are demanding better fuel efficiency.

Tom Kowaleski is a spokesman for BMW North America. He says new technology has changed the relationship between cylinders and performance.

Tom Kowaleski: We gain more performance than we had with the corresponding 6-cylinder engine that it replaces, but we do so with a 20 percent increase in fuel efficiency.

That’s partly because smaller engines weigh less, so suspensions can be lighter too, and lighter cars are more fuel-efficient.

More and more carmakers have been coming to the same conclusion; one of Ford’s best-selling full-size pickups now runs on 6-cylinders instead of 8; and Hyundai has stopped offering a V-6 version of the Sonata.

Michael Robinet is a consultant at IHS Automotive. He says keep in mind, these are global vehicles.

Michael Robinet: And so offering a 6-cylinder just for the United States doesn’t make a lot of sense when you can offer a 4-cylinder in all markets.

BMW says it will keep making those bigger engines. But it does plan to start offering 4-cylinder engines in many more models.

I’m Alisa Roth for Marketplace.

Marketplace is on a mission.

We believe Main Street matters as much as Wall Street, economic news is made relevant and real through human stories, and a touch of humor helps enliven topics you might typically find…well, dull.

Through the signature style that only Marketplace can deliver, we’re on a mission to raise the economic intelligence of the country—but we don’t do it alone. We count on listeners and readers like you to keep this public service free and accessible to all. Will you become a partner in our mission today?

Your donation is critical to the future of public service journalism. Support our work today – for as little as $5 – and help us keep making people smarter.