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GM seeks national mandate for zero-emissions cars

DETROIT — General Motors says it will ask the federal government for one national gas mileage standard, including a requirement that a percentage of auto companies' sales be zero-emissions vehicles. Mark Reuss, GM's executive vice president of product development, said the company will propose that a certain percentage of nationwide sales be made up of vehicles that run on electricity or hydrogen fuel cells. GM says a nationwide program modeled on such a requirement in California could result in 7 million electric vehicles, or EVs, on U.S. roads by 2030. California wants 15.4 percent of vehicle sales by 2025 to be EVs or other zero emission vehicles. Nine other states, including Maryland, Massachusetts, New Jersey and New York, have adopted those requirements. In January, California Governor Jerry Brown set a target of 5 million zero-emission vehicles in California by 2030. The Trump administration criticizes California's ZEV mandate, saying it requires automakers to spend tens of billions of dollars developing vehicles that most consumers do not want, only to sell them at a loss. Reuss told reporters that governments and industries in Asia and Europe "are working together to enact policies now to hasten the shift to an all-electric future. It's very simple: America has the opportunity to lead in the technologies of the future." A national mandate also would create jobs and reduce fuel consumption, CO2 emissions and "make EVs more affordable," Reuss added. GM, the nation's largest automaker, will spell out the request Friday in written comments on a Trump administration proposal to roll back Obama-era fuel economy and emissions standards, freezing them at 2020 levels instead of gradually making them tougher. Under a regulation finalized by the Environmental Protection Agency at the end of the Obama administration, the fleet of new automobiles would have to get 36 miles per gallon by 2025, 10 mpg higher than the current requirement. But the Trump administration's preferred plan is to freeze the standards starting in 2021. Administration officials say waiving the tougher fuel efficiency requirements would make vehicles more affordable, which would get safer cars into consumer hands more quickly. GM on Thursday said it doesn't support the freeze, but wants flexibility to deal with consumers' shift from cars to less-efficient SUVs and trucks.

Cadillac CT6 refresh has hints of Escala

Almost a year after Cadillac showed its stunning Escala concept at Pebble Beach, we're finally seeing some of that car's influence on production cars. These spy shots reveal that the CT6 will undergo a mild refresh, and despite the camouflage, we can make out details that show it will have looks more in line with the concept. One of the defining characteristics of the Escala were narrow, horizontal headlights, while the current CT6 has long, vertical lamps that go up the tops of the fenders. This prototype seems to split the difference. The bases of the lights terminate higher up on the fascia, emulating the Escala, but still travel up the fenders. It also appears that the LED accent lights remain, but it's possible they've been separated from the main lamps to become more like the concept. The grille has also been revised. It's hard to make out the exact shape, but the insert is the same type of mesh as the Escala's, with little highlights that look like miniature Cadillac crests. The full-size, full-color crest also appears to sit higher in the grille, which is another nod toward the concept. The lower grille in the front bumper also looks larger and more angular. That doesn't really lean toward either model, but should give the car an edgier look. The rest of the car looks generally the same as the current model. Even the tail shows little indication of changes. It's possible that the rear taillights could have an Escala-like horizontal section at the top of the trunk lid, but there's nothing visible on this prototype that would confirm that change either way. Since this is a relatively mild refresh, we would expect to see it fully revealed early next year. Related Video:

How GM's grueling 24-hour test gets the kinks out of its performance cars

One of the biggest challenges automakers face when designing a high-performance car is making sure that it is both fast and reliable. For General Motors, any car that might be taken to the track by its owner - like the Corvette, Camaro Z/28 (shown above) and the Cadillac CTS-V, for example - undergoes a rigorous and strenuous 24-hour test by engineers at the Milford Proving Grounds, as pointed out by Car and Driver.
We've posted on this topic in the past - on a video showing the Camaro ZL1 being brutalized, for instance - but this article gives a more in-depth look at what actually happens behind the scenes... including what that poor ZL1 went through. Though the test isn't for 24 hours straight, the cars are pushed as hard as possible by some of GM's best drivers with only the brakes and tires replaced frequently.
We don't want to ruin the fun for you, but it is an interesting article that tells just some of what GM does to develop its sports cars. Check out the full article over at Car and Driver for the rest of the story.