Placing limits on speed? It's all up to you.
Say goodbye to speeding tickets--and higher auto insurance rates. Siemens, one of the world's largest electronics companies, has come up with a system that prevents you from going faster than the posted limit. It uses an onboard camera near the rearview mirror that can read speed-limit signs and feed the data to an onboard computer. So if the sign says 55 m.p.h., that's as fast as your car will go, not 1 m.p.h. more.