For the Urban Warriors - best place to stick bumper protector/pads?

The aero features on this car is making difficult for me to determine the mostly like point of contact, especially the odd shape of the rear! NYC is notorious for roughing up bumpers :frusty:.

I dont want to put that "bumper defender" that you hang off the back, but rather those pads or rubber strips that are strategically positioned in some cars.

Anyone learned this the hard way please share!!