My son is car shopping, and he wants nothing to do with new cars. In fact, he’d like one about 15 years old. Why? He wants none of the tracking, telematics or high tech wizardry embedded in newer cars. Is he paranoid? Nope. He designs software. What he knows should make all of us pay far more attention to how much information our vehicles are sharing, and stop being dazzled by infotainment systems and other technologies that effectively take your bedroom door off the hinges.