BMW Jerks, Porsche Flashers — What Your Car Shows About You
Feb. 4 (Bloomberg) — Thundering down a highway in a smoking-hot BMW M6, I flick on my blinker and slide into the left lane to pass slower vehicles. Immediately a minivan swings in front of me, throws on his brakes and sticks there at a steady 50 miles per hour, boxing me in.

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