This is not a mancave, this is a car crib.
Yes, I just made up a new term because this garage needed it.
It's a Car Crib!
The E30 M3 hoods on the wall are cool. If I could make a suggestion, unless you have already considered it is adding a couple of etagere's filled with 1/18th scale cars (BMWs).
And that E46 M3 CSL is just gorgeous.