Day time running lights could save your life, and at very little cost to you.
The most common way to die in the US for people <45 years old is in a car accident. After 45 years old, the most common ways to die are cancer and heat attack. Check out the CDC website (centers for disease control and prevention).
People recognize the lights, especially other BMW drivers. I recognize the lights and think "what BMW is this in my rear view?" We are all in the same club, but M3 rules.
The M3 is the best that BMW has to offer. I could of got a M5 or M6, but the M3 is the best car they make, and the sexiest.