Which implementation of WebDriver promises to be the fastest?

1.	Which implementation of WebDriver promises to be the fastest?
Answer» HTMLUnitDriver is the quickest WebDriver implementation because the HTMLUnitDriver does not run tests in the browser, this is the case. When compared to RUNNING the scripts without a browser, STARTING a browser and performing test CASES took longer. For test case EXECUTION, HTMLUnitDriver USED a simple HTTP request-response method.

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