[freebeard]

I really don't want to take away from the functionality of the renegade's hatchback and curved rear window... Would anyone with more knowledge be able to help me design a partial kam back or boat tail?

http://www.jeepspecs.info/2015-jeep-renegade-sport-4dr-fwd-specifications-features-full-floor-console/

Nor do you want to reduce the functionality of the taillights. The overhang above the rear window pretty much is a Kamm-back. A full boat tail would be the length of the vehicle's wheelbase. I see these possibilities;

•Single-wheel boat tail trailer

http://ecomodder.com/forum/showthrea...ows-31144.html

•retractable boat tail

•box cavity

•perforated base plate

http://ecomodder.com/forum/showthrea...ail-33283.html