I really like your M3 when you originally posted it after having stuff done from the bodyshop...but if you're going with the 'stealth/dark look' then you've achieved it... (Not really my cup of tea, but it's your car)
^^^I'm echoing KingLuis comment that there's no contrast to the M3 it's just really dark especially with the dark tints, blacked out grilles, tinted rear tails and front corners..
The way you had the M3 with the SSR GT3's originally with the polished lip gives it a nice contrast, and not only makes the M3 look aggressive, but gives it a touch of class too!!
Just my 2 cents..