Quote:
Originally Posted by aerohead
Your car is so 'worthy', I went ahead and crunched a second set of numbers.
... ( if all mpg gain was strictly attributed to aerodynamics )
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Hey aerohead!
Here are some well known, reasonably certain Cds:
Full aerofoil
0.045
Half aerofoil
0.09+ground effect
Aptera
0.13-
0.15
Aerocivic
0.17-
0.19
Tesla Model
0.23
Gen II Toyota Prius
0.26
Claiming that Champrius has a drag coefficient of 0.12 is effectively saying it's somewhere between a half aerofoil and an Aptera, which it clearly is not. I don't know where the flaw is in your methodology, but it's there somewhere.
I personally feel much more comfortable claiming that v3.0 was somewhere between the Aerocivic and Tesla Model 3, which is why my guess is 0.21ish. I will boldly claim that v4.0 will equal the Aerocivic... I feel that good about the new revision.
If people are really curious about the drag coefficient, I can try to do a coast down test when I'm done. Unfortunately, v3.2 has already been taken away by the trashmen, so we'll have to wait until 4.0 is complete.
