What is the most interesting piece of technology on the new E-Class?
We'll answer your question with a question. What causes nearly 25% of all accidents? If you said drunk driving, than perhaps you're expecting a new breathalyzer smart key on the E-Class. Well the culprit is driving fatigue, so you get Attention Assistant, the new technology from Mercedes-Benz that detects when someone is likely going to fall asleep behind the wheel (and we've all been there). The best part of this system is that it comes standard on all E-Class models, so no need to worry when 3 a.m. hits and you need to drive from Las Vegas back to LA because you just bet away your room key.