Carmakers are incorporating advanced tech into their cars, taking human error out of the business of driving.
Cameras on both sides of the car keep track of the thin white lines currently zooming past your wheels. The car will detect intrusion from said wheels onto said white lines, and beep at you to pay attention, buddy. Some cars build on this the ability to gently nudge the steering wheel under your hands, thereby preventing the sort of distracted-driving mishap that lands you on the evening news.
Those of us who drive cars built after the know how cruise-control works: you just set it and forget it. And then set it again, when a left-lane dawdler comes up ahead. And then, set it again. And again. With adaptive cruise control, however, the car can detect vehicles ahead of you and slow down—and the best part is, after said left-lane dawdler disappears, it can bring you back up to speed.
First introduced in 2007, the blind spot monitor consists of a camera under each mirror that detects whether a vehicle is in the driver's blind spot. A warning light in the mirror comes on. Simple as that. Only now, thanks to ever-advancing technology, some cars can keep you back into your lane if you still blow past the warning lights.
All of these electronic safety features are designed to help you out if you're too tired. So why not a warning for that, too? A car can tell that you're tired through your driving patterns, how many times you veer into the next lane, or how you're steering. (Some cars use a front-facing camera to track your eye movements, perhaps inspired by the Voight-Kampff Test.)
Coupled with adaptive cruise control, if there's an obstacle up ahead, the car can slow, slow, slow down, all the way to a dead stop—on its own. They'll alert you with flashing lights and sirens to get you to take over, first.
Electronically-controlled seatbelt tensioners can lock into place whenever sharp turns, an imminent crash, or a spin is detected. It can also kick into place under fast acceleration, which may be a neat party trick for your enthusiast friends.