I love driving fast, but when I have kids, I'm going to put them in the slowest, safest car imaginable, wrap pillows and old tires around the outside and install this Tiwi blackbox to let me know when they're speeding. It has GPS and some cellular connectivity. When a driver goes too fast, it issues a verbal warning: "You're exceeding the speed limit; please slow down." Then it emails, text messages, or calls the proper authorities (mom or dad) if the speeding continues. Only $549 and $35 a month to totally mortify and alienate your kids for life. [Tiwi]

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