As we speed inexorably into the future, the standards of driving have plunged off a cliff. Here’s a quiz to determine whether or not you suck at it. — Cars are much safer than they were years ago, but drivers are less so, and many seem to think their bevy of airbags, lane keep assist and accident avoidance systems bring them the power of invincibility. Somehow, they breezed through their high school driving test with a simple three-point turn…