Tamiya item 89736 - U.S. Marine AAVP7 A1 with UGWS w/Submarine Motor - 1/35 scale Trucks / Vehicle Military Series assembly kit
Tamiya #89736 - Tamiya 1/35 U.S. aquatic AAVP7 A1 with UGWS - w/Submarine engine
the following is Tamiya's exemplary 1/35 AAVP7A1 kit, now with an awesome "submarine engine" that connects towards underside with this particular hull for play-action enjoyable! engine requires one AA battery, perhaps not included. That is a particular limited-edition kit.