I have the daytime running light system in my supra where it turns on the lights to a low-intensity setting during the day and the regular headlights at night. But you still have to turn on the rest of your parking and rear lights on otherwise it's just headlights.
I think they're pretty good, but sometimes i just don't want to have them on, but they turn on no matter what. Also when I park and i turn the car off, they stay on for like 30 secs., it's cool, but sometimes I want to turn them off quick, as in when i don't want someone to notice me, like a cop.
I don't think all Supra's have DRLs, but has anyone done anything with theirs, its there anything I can do to it (without disabling the whole system)?