Trunk Lip Mounting on Multiple Cars

I am in the process of finding a new car, and I'm looking at 2014 Nissan Altima, Honda Accord, Ford Fusion and a few other models. I was wondering if any one has any of these cars and have installed on a trunk lip mount on the trunk since the trunks are slightly curved, not flat looking. I have also thought a L bracket may work, but I don't want to drill into the new car for this, so if it can be done without this, then that'd be perfect!



Any help or pictures would be greatly appreciated!

Trunk Lip Mounting on Multiple Cars