 It's for emissions and for safety, and after 20 years down the road, it'll affect a large number of cars. Right now, it's only going to affect those new ones. The driver has four choices. They have a choice of a visual warning on the dash, an audible warning on the dash, a haptic where your seat vibrates because you're going too fast, or control of the speed where it will actually back the speed down. It just has to work.