As we presented last week, Audi plan to put sequential turn signals, front and rear, on the new A8 to be launched at Frankfurt this month.

The front combination lamp contains 18 LEDs arranged in a strip divided into seven segments, and the rear combination lamp has 24 LEDs in eight segments. The segments light up in sequence in the intended direction of travel, from inboard to outboard. During indicator operation, the segments are activated at 20 millisecond intervals starting with the innermost and proceeding outboard in the desired turning direction. After 150 milliseconds, all segments are bright; for another 250 milliseconds they illuminate with full intensity. Then all segments go dark simultaneously before repeating the lighting sequence.