Turbocharging has mostly not lived up to its billing of being the savior of internal-combustion engine technology. Earlier this decade, facing increasing fuel economy requirements, automakers rushed to boost fuel economy by adding turbochargers to lots of small engines. The problem is, many of them turned out not to be very efficient. As critics... Elaborate engine: Variable-compression Infiniti yields small efficiency gains
Turbocharging has mostly not lived up to its billing of being the savior of internal-combustion engine technology. Earlier this decade, facing increasing fuel economy requirements, automakers rushed to boost fuel economy by adding turbochargers to lots of small engines. The problem is, many of them turned out not to be very efficient. As critics... 
Tesla's new Navigate on Autopilot gets its first test. A new study links summer's wacky weather to climate change. We consider which electric car is the Best Car To Buy for 2019. And we ask you to weigh in. All this and more on Green Car Reports. Consumer Reports gives Tesla's latest self-driving feature, called Navigate on Autopilot, its first... 
For some, the evidence of global warming is hard to accept, especially when it has been difficult to draw the link between individual storms and an increase in atmospheric greenhouse gasses. Now a new study by a climate scientist at Pennsylvania State University has done just that. By studying the pattern of the jet stream, Professor Michael Mann... 
GPS navigation and Autopilot—two great driving aids that go great together. Tesla has offered both features for a long time, and is now rolling out software that combines them, so drivers can set a destination in their cars' navigation system and it will automatically take action to merge and exit highways, and change lanes to expedite the... 
Tesla acknowledged in a quarterly regulatory filing on Thursday that it has received a subpoena from the SEC asking about the company's forecasts the company made in 2017 for Model 3 production. Some investors have said they were misled by statements that the company would begin full production of the Model 3 by the second quarter of 2018, when... 
California begins fighting back against the EPA's fuel economy freeze. Austria proposes letting electric cars drive faster. Hyundai recalls Ioniqs. And BMW builds a new battery assembly line for its upcoming electric cars. All this and more on Green Car Reports. California issued a pointed 400-page rebuttal to the EPA's plan to freeze fuel economy... 
BMW announced last month it will significantly expand and overhaul a facility to produce batteries for electric cars at its factory in Dingolfing, Germany. The factory currently builds several BMW sedans and coupes, including plug-in versions of the 5- and 7-Series. The new battery assembly line in the factory will cover 65,000 square feet in the... 
Last Friday, California released a 400-page repudiation of the Trump administration's plan to freeze fuel economy standards and revoke California's statutory right to set its own limits on vehicle emissions. The report comes in response to the EPA and NHTSA's proposed Safer Affordable Fuel Efficient Vehicles Rule, which would undo fuel-economy... 
Hyundai is recalling 10,575 Ioniq Hybrid and Plug-in Hybrid models from 2017 and 2018 to replace a wiring relay in the drive system. The recall mirrors a similar problem announced last month with the Ioniq's platform-mate, the Kia Niro, which was also recalled. Bad connections in a drive-system relay can cause the relay to overheat and lead to a... 
Hyundai and Kia plan to put solar panels on cars. VW won't rule out sharing electric cars with Ford. A prominent electric-car advocate takes issue with GM's plan for a national mandate. And a new report from the journal Nature shows global warming may already be much worse than expected. All this and more on Green Car Reports. As solar panels get...