When installed, is it supposed to be slanted? Yeah, I know, stupid question, but I've seen pix of others' Maximas with grills that look straight up & down, and this one, after installed, is slanted. Not sure if I like it or not yet.

Also, the protective rubber covering that goes around the edge of the grill...

Do I leave that on? It doesn't mention anything about it in the instructions that came with it, nor can I find any info on it in any of the writeups on maxima.org. I left it on. I figured that is so it won't scratch up my car. Is this correct?