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Sad to see (in the Road and Track article) the EPA head trying to cast this in terms of climate denialism instead of just focusing on the tech, whether it works, and whether it causes other problems. I can't wait for his "fix."
In the same article, this seems to be the money quote for why I actually like it, having expected it to annoy me (given that my 540i is a mild hybrid):
"Vehicles with mild-hybrid electric assist will take that a step further and shut the engine off as you’re coasting to a stop, eliminating the rough sensation of an engine abruptly stopping. They’re typically much smoother on start-up, too, as the electric assist gets you moving off the line, giving the engine a chance to start after the car’s already started to roll forward. Many mild-hybrid-equipped vehicles will even shut the engine off while coasting, too, silently saving fuel in the background."
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