Chevy Bolt's aero is a 'disaster,'
From autoblog:
Design team leader Stuart Norris called it a "disaster for aero." They made it "big and spacious," getting a Cd of 0.32. The standard tricks of aluminum, a spoiler, underbody panels and an active grille are meant "to compensate" for it. They killed the aero to get interior utility. On a platform who's selling point is efficiency. I'm not a fan. |
I wouldn't call .32 a disaster, but it certainly is sorely lacking compared to most vehicles these days which are sub .3 if they're trying at all. It would be very interesting to see the difference in range between .32 and lower CDs.
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It wasn't me, the lead designer called it that. He doesn't sound happy about being told to add more cubic feet. They even had to say that normal tweaks weren't to "make it even better," but to "make it less bad."
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it's the 'design' team leader. of course he's upset. design and reality and sales are very different things.
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What's the frontal square footage?
Cd is only half the equation. |
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Disappointing. |
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Very few cars on the road have that low of a Cd in my opinion. The Cd of .32 is respectable, the current Porsche 911 has this Cd, it is one of the lower ones, not Prius low, but at least sports car low. I did find this link, older model cars though. http://www.mayfco.com/dragcd~1.htm |
0.31 Honda Civic (Sedan) 2006-2011
0.28 Honda Civic (Coupe) 2006-2011 0.27 Honda Civic (Hybrid) 2006-2011 Wikipedia: 0.28 Hyundai Elantra 2011 0.28 Chevrolet Cruze sedan [99] 2015 0.29 Chevrolet Corvette 2005 Here's the one that gets me, two electric hatchbacks, both significantly (~10%) better aero than the Bolt: 0.29 BMW i3 2013 0.29 Nissan Leaf 2010 0.31 Nissan Versa 2004 0.29 Nissan Versa 2007–2008 0.29 Toyota Yaris 2006-2011 0.28 Chevrolet Volt 2010-2015 0.275 Ford Fusion 2013 0.27 Mazda6 (sedan and hatchback) 2008 0.28 Mazda3 (Hatchback) 2012 0.277 Toyota Auris hatchback 2013 0.27 Volkswagen Golf Mk7 2012–present Yes, they could have done much better. |
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I think it's been at least 3 years since I looked at a complete Cd list, certainly improvements have been made fleet wise I can see. Such a jump may be connected to EPA fuel economy regulations. I wonder if there is a chart for this. Found this.......(see below)........several charts and graphs in link below. Corporate Average Fuel Economy https://en.wikipedia.org/wiki/Corpor...ation_proposal Quote:
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