I hear the E-Class will even brake for you when you're too busy texting?
Well, that's one way to put it. There are many situations where we become distracted while driving (some more our fault than others), and when traffic stops suddenly a millisecond of reaction time can make the difference between "that was close" and "somebody call an ambulance." With this in mind, Mercedes engineered its optional adaptive cruise control to also act as a device for detecting and mitigating imminent collisions (called Distronic Plus with Pre-Safe Brake). If you are approaching a slowing or stopped vehicle and the system detects you should be braking, it will first warn you 2.6 seconds before impact, automatically apply 40% braking power at 1.6 seconds before impact, and if you're just slumped over or really not paying attention, at 0.6 seconds it will apply 100% braking power to reduce the full impact of what will inevitable be a nasty collision. You can put a price tag on most any option, but a couple extra milliseconds of reaction time in a potential crash situation are priceless.
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