2004 Toyota Tacoma on 2040-cars

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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.

2015 Toyota Sienna

It's hard to love a minivan, but it's very, very easy to use one. More than any other kind of vehicle - save a panel van, perhaps - the minivan is the most appliance-like of four-wheeled transportation devices. And most minivan buyers don't need to love their purchases; they just need to use them. So when it comes to a minivan's driving dynamics, who cares?
Well, we do. So we perked right up when Toyota talked about refinements it made to the 2015 Sienna, starting with some 142 added spot welds made to the body structure. Normally not stop-the-presses stuff, but Toyota says the added reinforcements prompted Sienna engineers to recalibrate the springs and shocks for improved handling, and our very limited wheel time along the (admittedly benign) roads on the Big Island of Hawaii revealed the 2015 Sienna SE model's handling to be tidier and more engaging than you'd expect for a porky, 4,560-pound, eight-passenger box on wheels.
Driving Notes

Toyota turning landfill gas into hybrid vehicles, indirectly

Chamillionaire certainly wasn't referring to the Toyota Avalon or Camry when he rapped about "ridin' dirty" but maybe he'll change his tune soon. That's because some of the future energy sources for the Kentucky factory that makes those two models will come from gas created from the breakdown of solid waste. So the power behind some of the production at Toyota's largest North American factory will indeed be funky. Toyota is working with Waste Services of the Bluegrass to build a network of wells at a nearby landfill in order to collect the gases. Construction of the system starts next month and will be finished by early next year. The upshot is that the system will produce one megawatt of electricity per hour, which is the equivalent to the power used by 800 houses. Last spring, Toyota said it would start producing the Lexus ES at the Kentucky plant after getting almost a $150 million offer from the state. That's because that model is expected to add 50,000 vehicles to the existing production numbers at the plant. And those production numbers are already large, as Toyota makes both the standard and hybrid versions of both the Camry and Avalon there. Mind you, Toyota's not the first to go this route for factory-energy production. In 2011, General Motors' Orion Assembly Plant started getting about 40 percent of its energy for production of models such as the Chevy Sonic and Buick Verano from methane captured from a landfill nearby. The General estimated at the time that the process would cut the company's energy costs by about $1.1 million a year. Check out Toyota's press release about the Kentucky plant and its future landfill gas below. Landfill Gas to Build Cars and a Greener Community Partnership between Toyota and local landfill turns garbage into good March 24, 2014 GEORGETOWN, Ky. (MARCH, 24 2014) – Can a car company be a vehicle for change? Toyota thinks so. The Kentucky plant that manufactures some of the greenest cars on the road, including two hybrid models, will soon be powered in part by green electricity. Toyota Motor Manufacturing, Kentucky, Inc. has teamed up with Waste Services of the Bluegrass to generate power from local landfill waste, marking the region's first business to business landfill gas to energy initiative. Toyota estimates the locally-generated landfill gas will supply enough power each year for the production of 10,000 vehicles. How it Works As solid waste naturally breaks down in a landfill, it creates gas.