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Tesla on Autopilot Smashes Straight Through Garage Door, Driver Says
(autos.yahoo.com)
This is a most excellent place for technology news and articles.
Parking brake is not the same. Try googling it. Or think of the physics -your car can go from 60 to zero a lot faster than it can go zero to 60. Or watch the top gear episode where they test it on a mustang with a thousand horsepower and stock brakes.