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File this one under coolness. Mazda has unveiled a new concept car that further moves the push to orphan the soon-to-be old-fashioned use of keys-by replacing keys with USB flash drives.

The Mazda Sassou is designed to incorporate USB flash technology and the current Internet revolution into a driving experience.

The USB keys can be used to unlock and start the car while offering other features that will one day reduce keys that only have two or three functions to obsolescence.

The car has an internal hard drive to which drivers can transfer driving directions or music downloaded from the Internet. It's only a matter of time until we see drive-by spammings.