2008 Toyota Tacoma 4wd Dbl V6 on 2040-cars

Auto blog

This map reveals the cleanest vehicles based on location

Naysayers love to point out how dirty the electricity grid mix is when it comes to charging electric vehicles. Curmudgeons are eager to jump into any conversation about EVs to enlighten the lucky listeners about how plug-in cars contribute to pollution, sometimes even throwing in a dash of climate-change denial for good measure. (Thanks, buddy. Pray, tell me more about the plight of oppressed SUV owners.) Unless someone buys an EV just because they think they're cool (which, yeah, they often are), they probably have at least a passable understanding of their environmental pros and cons. As many EV owners are already aware, location has a lot to do with any particular plug-in car's carbon footprint. Still, there's always more to know, and knowledge is not a bad thing, especially if one uses it to do the right thing. That's why this handy-dandy map from Carnegie Mellon University is so interesting. CMU researchers have compiled information about the lifecycle greenhouse gas emissions of various EVs based on where they're charged, as compared to gasoline-powered vehicles. The researchers looked at the Nissan Leaf, Chevrolet Volt, and Prius Plug-In Hybrid versus the gasoline-dependent Toyota Prius hybrid and the stop-start-equipped Mazda3 with i-ELOOP and compared grams of CO2 emitted per mile. CMU takes into account the grid mix, ambient temperature, and driving patterns. CMU takes into account the grid mix based on county, as well as ambient temperature and driving patterns in terms of miles traveled on the highway or in the city. For instance, if you drive a Nissan Leaf in urban areas of California, Texas, or Florida, your carbon footprint is lower than it would be if you were driving a standard Toyota Prius. However, if you charge your Leaf in the Midwest or the South, for the most part, you've got a larger carbon footprint than the Prius. If you live in the rural Midwest, you'd probably even be better off driving a Mazda3. Throughout the country, the Chevrolet Volt has a larger carbon footprint than the Toyota Prius, but a smaller one than the Mazda3 in a lot of urban counties in the US. The Prius and Prius Plug-In are relatively equal across the US. Having trouble keeping it straight? That's not surprising. The comparisons between plug-in and gasoline vehicles are much more nuanced than the loudest voices usually let on.

Carmakers, NHTSA to unveil auto-emergency braking agreement tomorrow

Happy St. Patrick's Day Eve. Tomorrow, there will be green beer, corned beef and cabbage, and automatic emergency braking for all. Weird combo, we know. But on St. Patty's we can expect an official announcement from a pact of automakers making auto-braking systems standard equipment by 2022. That's per a report from Reuters, which cites three sources familiar with the plans. Originally announced in September 2015 by 10 automakers and the National Highway Traffic Safety Administration, the agreement is expected to be even larger when the details are unveiled tomorrow. According to Reuters, the manufacturers of 99 percent of the US domestic market's vehicles will be represented by the new agreement. It's believed that standard AEB systems could prevent thousands of accidents across the country. Expect more on the official announcement when it's made. Related Video:

Weekly Recap: Ford GT inspires guitar, foosball table, sailboat

Ford design vice president Moray Callum had just wrapped up a briefing on the interior of the Ford GT last month, but something seemed out of place. He grinned and pointed behind him, "You might be wondering why I have a boat behind me," he said mischievously. It was there because Ford set its designers on a mission to stretch and showcase their talents: design non-automotive objects inspired by the interior of the GT supercar. Callum received quite a response, too. His team produced a guitar, a foosball table (yeah bro!), a racing sailboat, a Wi-Fi speaker and some furniture. As the veteran design chief explained, "It's a really great exercise both to highlight our designers' talents, but also to really see how our design philosophy can work and how you can use it and get a common response back from a worldwide design team." Guitar View 25 Photos The objects have been on display this week at the Salone del Mobile furniture and fashion design fair in Milan, Italy, where Ford has had a presence for three years. There's also a light exhibition that apparently was inspired by the GT, as well. While this might seem a little far-fetched for the automaker, Ford said exhibitions like the Salone del Mobile give its designers another way to be creative and ultimately produce striking interior style. Ford wants this to be a differentiator, as research shows consumers are placing emphasis on the layout and features inside when they're making a decision about buying a new car. It's a little light hearted – but it's also potentially big business. Other News & Notes Cadillac CT6 platform could be used for Buick General Motors product chief Mark Reuss said the Cadillac CT6 platform could be used for a large Buick, though "not yet," Automotive News reported. The underpinnings can accommodate rear-wheel or all-wheel drive and would give Buick the large flagship it lacks. The report jibes with comments Reuss made at a roundtable with Autoblog and other reporters at the New York Auto Show. When asked if Buick had space for a large car on the CT6 chassis, he replied, "Yeah, I think it does. Yeah, I think we do." Buick has revamped its lineup in recent years with attractive crossovers and small and midsize sedans, but hasn't added the proverbial flagship that's yearned for by enthusiasts. Buick surprised industry observers with the stylish Avenir concept at the Detroit Auto Show earlier this year that raised the possibility of a halo sedan.