In what the car's instrumentation describes as "Insane Mode," Tesla's all-wheel-drive, 691-horsepower Model S P85D electric sedan can reach 60 mph from a dead standstill in just 3.1 seconds.

JOLIET, Ill. - Before I ever drove a Tesla, I was a fan of the brand. From the tablet-like center stack to the free cross-country supercharging stations, I think this Elon Musk guy might be onto ...

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