[lunarhighway]

i believe Floordford is refering to the lack of something inside the rear fender rather than a boattail, wich few cars have. my car too has an inner rear fenders that do not extend down to the edge of the bumper.

my rear fender liner is metal and so it makes sense from a weight saving perspective to not have it run down all the way down. however i'm also wondering on it's aerodynamic propperties, intended or not.
especially since i have build a rear undertray and to avoide dirt and water gettin on top of the tray i had to construct my own inner fender extention to close the gap. the transition is somewhat rounded but i'm wondering if this construction is a local drag contributor compared to stock.