The future of car safety is here
New, groundbreaking features can alert you to danger before you even know it's there. But added safety comes at added cost.
Lane drifting
Possible solution: Lane departure warning
What it does: Informs you with light or sound if you're about to cross a lane marker without using a turn signal. The Infiniti EX35 crossover also brakes slightly on one side to gently nudge the car back into line.
Availability: Luxury cars, including Audis, Acuras, Infinitis, Mercedes-Benzes, and Volvos.
Estimated cost: $500
Worth it? Only if you can find a system you can live with - and that may be tough. The warnings can quickly become irritating, especially on narrow roads where you have to hug the center. I found that the alert on the Infiniti EX35 beeped far too often. The one on the BMW 7 Series is more tolerable. The steering wheel shivers as you start drifting. Lesson: Try out this feature in a test drive before you invest in it.
NEXT: Blind spots
