This is a bit of an understatement:

"The Nazi leader’s interest in the vehicle was such that he even contributed his own sketch of what he felt the vehicle should look like, although it only has a passing resemblance to the final designs."

I think they should go back to Hitler's original sketch and look again. In my opinion, Hitler came up with the fundamental look of the Beetle. This goes beyond "only a passing resemblance" to what we know as the Beetle today.

Reference: http://www.brandpowder.com/wp-content/uploads/2011/07/small-...