Everyone wants autonomous cars, but today they are cost prohibitive because they rely on multiple lidars. The answer is radar, it's tens of dollars, already in most cars, and works in all weather. The problem: no one has built a radar compatible with end-to-end training, which is how all modern autonomous vehicles learn to drive. We built the radar hardware and radar simulator to change that. Fore more info, congruent.io and be in touch. Congruent: YC Winter 2026: Radars for end-to-end autonomy