The new E90 3-Series does come with Adaptive Brake Lights. The tail lights do NOT have to be LED to have the Adaptive Brake Lights feature. If you checkout the E90 325i, and go to the photo gallery, there is a large picture of the right tail light. From the look of it, it seems like the tail light is NOT LED as it looks like a reflector-type setup (LED tails do not need reflectors). Hopefully I am wrong and the new 3-Series does come with LED tails because they are much easier to read/see and the LED lights will last for the life of the car.