Designed by Chicago-based Mercier-Jones, the two-seater Supercraft, illustration pictured, costs $75,000 (£45,500) and is due to go on sale in May. It currently has a top speed of 80mph (128 km/h) on land and 40mph (64km/h) on water. It is powered by a hybrid engine and  features two thruster blades on the side, pictured
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