The new Audi A4 gets many new electronic and assistance features found in larger BMW and Mercedes models. Features such as adaptive shock absorbers, seat fans, adaptive airbags/belts, adaptive cruise control, radio-operated key, variable steering as well as other Audi features found only in A6 and A8 models which include MMI and a 10-channel 505-Watt Bang & Olufson 14 speaker stereo system. Lastly, for an added touch of the Audi R8, the xenon plus headlight option includes 14 white LEDs as day-time driving lights