Gas Mileage

What a shame. Diesel engines were just getting a foothold in the United States and Volkswagen had to go ruin it. At this point, it looks like diesel is dead for cars in the U.S., though it may hang on for SUVs and will certainly continue in heavy duty pickups. Yet in these uncertain times for oil...

Sales of mid-size sedans are down significantly this year.

Carmakers regularly tweak their powertrains to boost fuel efficiency or improve performance and drivability. Changes to EPA test cycles for 2017 mean that the agency's fuel-economy ratings for many new cars have fallen slightly. Knowing that, and having learned more about how its various hybrid...

The 2017 Ford F-150 gets a new 10-speed automatic transmission and upgraded 3.5-liter twin-turbocharged EcoBoost V6.

Consumers Unions busts myths spread by CAFE critics.

A BMW i3 REx owner recounts 27 months with the range-extended electric car.

U.S. drivers logged a record number of miles in the first half of this year.

It's probably the battle that will do most to determine the carbon emission from new U.S. vehicles over the next decade. Automakers want to modify, delay, or extend the current corporate average fuel economy standards for 2022 through 2025 vehicles; regulators don't. The mid-July release of the...

The battle over CAFE standards continues.

The 2017 Honda Fit enters the new model year virtually unchanged.

An automaker lobbyist group believes CAFE rules aren't realistic.

The 2017 Audi A4 Ultra is the least-expensive and most fuel-efficient version of the A4 sedan.

Transportation is now the biggest source of U.S. carbon emissions, according to the U.S. Public Interest Research Group.

When looking for green transportation, does it make sense to opt for two wheels instead of four? Motorcycles weigh significantly less than cars, and generally have smaller engines. That means they use less fuel than the typical car, and they also require fewer raw materials to make. DON'T MISS...

Carmakers are building larger vehicles so they can aim for lower fuel-economy targets, analysts say.

The Audi eROT system recovers energy from the movement of a car's suspension.

The 2017 Porsche Panamera adopts many fuel-saving measures, but what are the results?

Two weeks ago today, three federal and state agencies jointly released a "Technical Assessment Report" on how well automakers have done thus far in meeting corporate average fuel economy standards. It concluded that car companies may not quite reach the theoretical goal of an average 54.5 mpg (or...

The 2017 Mitsubishi Mirage boasts a number of notable updates.

A pair of U.S. federal agencies said yesterday that while automakers had complied with the first five years of stricter fuel-efficiency laws, the industry seemed unlikely to meet 2025 targets for improving gas mileage. Rather than hitting the projected 54.5-mpg Corporate Average Fuel...