So I've been trying to use the aero template to figure out some possible designs to get going on the front and rear of the vehicle:
I could be wrong but from what I've read so far if you can't boat tail then its ideal to cut it off as quickly, or vertically, as possible? In the attached picture the red line may be a possibility for rear spoiler to stick with the kamm roof a bit better (note; my getz doesn't have the mini roof spoiler shown in this pic).
Re. the front I have no idea how to improve in this area given that the template is so far back compared to the front of the car, so I'm looking for some insight from the more experienced here