emissions

A Porsche executive said synthetic fuels can reduce carbon emissions by 85%, creating lower "well to wheels" emissions than an electric car.

Jason Fenske of Engineering Explained shows how Koenigsegg's engineers bypass straight pipes and emissions delays to optimize power

Minneapolis has banned new drive-thrus due to the emissions they cause and pedestrian safety issues.

Tightening emissions laws mean that the big, burly sports cars won't have a home in Europe for much longer.

A German startup claims it has the technology to help keep internal-combustion engines on the road for decades to come. MWI Microwave Ignition believes it can cut gasoline and diesel fuel usage by 30 percent and reduce emissions from a typical engine by 80 percent, according to a Thursday...

Volkswagen can begin updating roughly 38,000 SUVs illegally equipped with emissions-cheating devices, federal and state regulators announced Monday. The EPA and California Air Resources Board sent a letter to VW, Audi, and Porsche officials Friday approving fixes for 2013-2016 Volkswagen Touaregs...

The BMW M3 and M3 are about to become a little less special as both the sport sedan and coupe will switch from carbon fiber-reinforced plastic (CFRP) driveshafts to fairly commonplace steel components. BMW says the reason behind the switch involves emission standards and future compliance. The CFRP...

Talks appear to be breaking down between the U.S. government and Fiat-Chrysler Automobiles over the automaker's alleged use of emission defeat devices. Now, according to Bloomberg, the U.S. Department of Justice is preparing to sue the automaker if talks fail to resolve the issue. Previously, both...

Jaguar Land Rover has launched a ferocious defense of diesel power as the United Kingdom prepares a wide-ranging plan to improve air quality in its major cities. JLR CEO Ralf Speth, pictured above left, told Autocar, “Diesel has to—needs to—have a future,” before laying out...

When it comes to automakers that are perceived to be “green,” Lamborghini probably isn’t the first company to come to mind. After all, it’s product line consists exclusively of supercars like the Gallardo and Aventador, powered by V-10 and V-12 engines. If you want fuel...

As automakers look to meet ever more-restrictive emission standards and ever-increasing fuel economy goals, automatic start stop systems, which shut down an engine after a few seconds of idle and then instantly restart it, will become more and more commonplace. As with any new technology, start...

A German exhaust component manufacturer is working on systems to produce electricity from waste heat. Their concepts may one day replace the alternator in cars of the future.

Ford’s 3.5-liter EcoBoost V-6 proved one point to truck and sedan buyers; thanks to technology like gasoline direct injection and twin-turbocharging, it was indeed possible to squeeze V-8 power and drivability out of a V-6. Their 2.0-liter EcoBoost four looks to prove that V-6 power is...

GPS navigation systems and internet-based route planners allow you to pick the quickest or shortest route to your destination. However, until now there hasn't been the option to pick the greenest route, allowing you to use the least fuel and reducing your journey's emissions. Researchers at the...

There may be life in the old dog yet - engines have never been the cleanest of machines, requiring fossil fuels for their power and releasing all manner of gases, elements and chemicals through the combustion process. Carmakers have come on in leaps and bounds over the last few decades to make the...

Every year the Environmental Protection Agency (EPA) produces a list of the best and worst cars for fuel efficiency and not surprisingly this year’s worst offender is the 2011 Bugatti Veyron--a car fitted with a quad-turbocharged 16-cylinder engine displacing no less than 8.0-liters. This...

It's no secret that getting a lot of power out of a small package is a solid recipe for efficiency--just as Honda about four-cylinders, or BMW about inline sixes--but a 600-horsepower supercar being more efficient than a hybrid? That's got to be a special case, right? Well, yes and no. The very...

A new technology involving functionalized fullerenes and low-energy lasers could make cars far more efficient.

It wasn't long ago that supercar manufacturers were scoffing at the idea of introducing hybrid variants of their models, but with Porsche and even the usually traditionalist Ferrari hard at work on their own respective hybrid drivetrains, it wasn't going to be long before other supercar...

Getting more out of the current generation of hardware is becoming increasingly important for the major carmakers as fuel and emissions standards tighten, but getting more power out of smaller, less expensive engines is also advantageous from a cost perspective. That's what makes Fiat's Multiair...