Our cars are similar but mine is 2013.
Looks like you already have a black grill (some come with chrome) and good wheels.
I like small spacers on the wheels, nothing to aggressive I think I have 12mm and 15mm, but you have 20's so maybe not needed.
I have the
m performance decal on my car and like it, altho its now on its last legs for me now.
I've not done much to my car other than replace things that age, plastic around the front windshield thats under the window wipers cracks,
the plastic in the door handles gets kinda nasty and its not really cleanable, so you have to just replace it.
The cars great tho. and yours has great options.