Originally Posted by bimmerjph
That wont happen. In a lot of states colored lights are considered distracting and are against the law to use on the road.
Angel eyes are the halos and not the "headlights" they are DRLs (outside the new 7). I think they can be yellow if they meet the FEDERAL MOTOR VEHICLE SAFETY STANDARDS-Sec. 571.108 Standard No. 108; Lamps, reflective devices, and associated equipment. says they can be yellow same as side markers.
BMW used yellow decades ago as factory color for them as well.
Other brands like Buick have Yellow DRLS.
(3) Is designed to provide the same color as the other lamp in the
pair, and that is one of the following colors as defined in SAE Standard
J578 MAY88: White, white to yellow, white to selective yellow, selective
yellow, or yellow;
(4) If not optically combined with a turn signal lamp, is located so
that the distance from its lighted edge to the optical center of the
nearest turn signal lamp is not less than 100 mm, unless:
(i) The luminous intensity of the DRL is not more than 2,600 candela
at any location in the beam and the turn signal meets the requirements
of S126.96.36.199; or
(ii) (For a passenger car, multipurpose passenger vehicle, truck, or
bus that is manufactured before October 1, 1995, and which uses an upper
beam headlamp as a DRL as specified in paragraph S5.5.11(a)(1)(ii)) the
luminous intensity of the DRL is greater than 2,600 candela at any
location in the beam and the turn signal lamp meets the requirements of
(iii) The DRL is optically combined with a lower beam headlamp and
the turn signal lamp meets the requirements of S188.8.131.52; or
(iv) The DRL is deactivated when the turn signal or hazard warning
signal lamp is activated.
(5) If optically combined with a turn signal lamp, is automatically
deactivated as a DRL when the turn signal lamp or hazard warning lamp is
activated, and automatically reactivated as a DRL when the turn signal
lamp or hazard warning lamp is deactivated.
(b) Any pair of lamps that are not required by this standard and are
not optically combined with any lamps that are required by this
standard, and which are used as DRLs to fulfill the specifications of
S5.5.11(a), shall be mounted at the same height, which shall be not more
than 1.067 m above the road surface measured from the center of the lamp
on the vehicle at curb weight, and shall be symmetrically disposed about
the vertical centerline of the vehicle.