It's not certain when this will reach customers, or even what the final name will be. And as enthusiasts will tell you, it's not a novel concept -- many sports cars have the option to turn off handholding features. It's still relatively rare among street-going electric vehicles, though, and serves as another signal that Tesla is interested in EV performance beyond straight-line acceleration. The greater challenge may be the "Augmented Mode" for the upcoming Roadster. It's one thing to turn features off in the name of courting experienced drivers, it's another to use them to improve a driver's abilities.