More areo out of a Metro
 

I am considering cutting the rear of the car off right behind the door(2dr) were the window starts and tapper down to the rear of the car to the hatch. My question is how important is the side tapper in overall CD? In my mind I envision the look of a 63 split window vette how it tappers down from the roof and from the sides. I think this would be the best overall. What do you guys think?

http://bringatrailer.com/wp-content/...e_Desert_1.jpg

Go all the way and make a tadpole trike out of it.

Depending on the construction you could get a good amount of weight reduction out of it for an added bonus. Maybe a bent cromoly tube frame with fiberglass skin.

side taper
 

The aeroshell on my truck has the plan taper and is good for 13% mpg increase,over a 10%,typical of a straight-sided aeroshell.
You won't want to make the sides any 'faster' than the roof,and you may actually need to make them a bit 'slower',as the flow is slower on the sides and if mismatched you'll create attached vortices with high drag just as in a bad fastback design.
A windtunnel model would be one of the few ways to iron it all out.

The aeroshell on my truck has the plan taper and is good for 13% mpg increase,over a 10%,typical of a straight-sided aeroshell.

Do you have a pic of the 13% cap?

try for photo link
 

The photo is at end of aerodynamic streamlining template part-c,lets see if I can link it:
http://ecomodder.com/forum/showthrea...-c-9287-4.html

permalink#39
 

The link gets to the thread,then you need to go down page to #39 permalink