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Old 03-29-2021, 11:07 AM   #1 (permalink)
MetroMPG
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Location: 1000 Islands, Ontario, Canada
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Blackfly - '98 Geo Metro
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Mercedes says 0.20 Cd for EQS electric sedan is record best for a production car




(EQS concept and camo production cars.)

UPDATE: scroll down a few posts for undisguised photos of the production car.

Quote:
Mercedes has claimed the throne of drag coefficient saying the EQS is the most aerodynamically efficient series production car in history with an astonishing 0.20 Cd.
Probably the most novel detail is the hood is a clamshell design to avoid cut lines on top of the fenders.

I wouldn't expect that's a significant aero benefit unless the car has laminar flow across the hood/fender transition, which would be unusual for a road car, no?

Relevant aero detail or harmless styling exercise?

Quote:
There are small inlets to cool the batteries, motors, and charger, but these have aggressive shutters to keep them closed when not needed for maximum aero. There is no hood shut line to be seen from the top, as it incorporates the tops of the front fenders, much in the same way Porsche’s Macan does. The car’s underfloor is completely smooth from front to back.
The article also describes alloy wheels with inserts between the spokes. But we've been seeing this on multiple EVs - eg. Tesla does this.


More pics at: https://www.autoweek.com/news/a35960...-aerodynamics/

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Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
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