The brakes on BMW's new 3-Series feature a host of life-saving tricks packed for the first time into one vehicle. They anticipate an emergency stop and cinch the pads closer to the rotors, so they engage faster. And because they resist fading during long descents, you can stop quickly at the bottom. They also squeeze the calipers intermittently in the rain to keep the pads and rotors dry and, when stopped on hills, hold the car while you move to the accelerator.
Stay up to date on the latest news of the future of science and technology from your iPhone with full articles, images and offline viewing
Featuring every article from the magazine and website, plus links from around the Web. Also see our PopSci DIY feed
Share links with friends, comment on stories and more
Inside NASA's astronaut bootcamp and the grueling new training regimen for deep space. Plus, ten young geniuses shaking up science today, one writer's quest to analyze every man-made chemical in her body and more.
Check out the issue's full contents online here