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While everyone's been buzzing about the Aquada, that amphibious car that debuted last week, it turns that there's already a motor vehicle on the market which can travel by both land and sea. The Terra Wind is a 42.5 foot long RV that costs around a million bucks and has two bronze propellers attached to the back for getting around in the water:

"It's simple to drive in the water," said John Giljam on ABCNEWS' Good Morning America. "You drive straight into the water, push the marine shifter into gear and put it in neutral and away you go. You are a boat."