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How to get incredibly accurate information on your EV's charging power

One would think that paying about $300 to receive a bit of bad news about electric-vehicle charging would be counterproductive. But the fine folks at Teslarati believe that truth is beauty, and they're willing to pay a little extra for the straight dope. There are always losses when taking power from the grid and shoving it into an EV's battery pack. The question is how big are these losses. Teslarati calculated digital read-outs from the dashboard of their Tesla Model S all-electric sedan and found that Tesla builds in about a nine percent efficiency loss when it comes to recharging the car. But the blog thought the Tesla couldn't know exactly what was transpiring between the wall and the battery, so it footed the bill for about $300 to install a digital submetering unit from EKM Metering. With a little calculation, Teslarati was able to figure out after a couple of recharging rounds that the efficiency loss per recharge was closer to 15 percent than nine percent. That means that, instead of paying about 48 cents on the dollar relative to filling up an economy car (factoring in the AAA average price of $3.66 per gallon), Tesla owners are paying about 52 cents on the dollar. Not much compared to paying upwards towards $100,000 for the vehicle itself, but, hey, every cent counts, right? Get all of the details here. Featured Gallery Tesla Model S View 10 Photos News Source: Teslarati Green Tesla Electric recharging

First Tesla Model S P85D owner says it's 'night and day' improvement

The first public owner of a Tesla Model S P85D says the model's autonomous-driving feature that more-or-less allows for the all-electric sedan drive itself hasn't been activated yet. We should all have such troubles. Southern California resident Kevin Babineau was indeed the first customer to take delivery of a Tesla Model S P85D, which features a dual-motor all-wheel-drive setup. Babineau is a longtime car collector, with Humvees and a '69 Chevy Impala in his garage. He previously owned a Tesla Roadster, as well, according to an account he gives to Business Insider. Compared to a standard Tesla Model S and its already-impressive performance standards, the P85D is "night and day" different, Babineau said. The souped-up version is said to go from 0 to 60 miles per hour in a tidy 3.2 seconds. Babineau paid about $130,000 for the quickness privilege, but as you can read in the article, it sounds like it was money well spent. "The emotions that come out of that kind of speed, in that short a distance, your body's not used to it," he said. Tesla unveiled the P85D in October. As you can see in the video below, it can be fun. A P85D driver (no, it doesn't look like Babineau) goes up against Ferraris and Lamborghinis in drag races, and takes them all down. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Saleen Tesla Model S announced as tuner's first EV

Saleen has made its name on building some of the meanest modern muscle cars around, which was why it was so surprising when it announced in December that its next project will go electric. Has the famed pony car modifier lost its mind? Or is it right in thinking the performance potential of the Tesla Model S is too big to ignore?
Details remain scant about the project, but Saleen promises to transform the Model S into an electric supercar. Power is getting a boost but exactly how much more than Tesla's own 416-horsepower Model S P85 is not known. Saleen has also not set a completion date for the car yet, but it promises that renderings and specs will be ready soon. The only real detail that Saleen gives about its version of the Model S is that it has "a revolutionary design all our own," so we're expecting some visual differentiation to go with its inevitable augmented power.
"I fully intend to produce one of the most compelling Tesla's to ever hit the roadway," said Steve Saleen, company founder and CEO. You can read the entire brief press release below.