The Fomm Concept One, a water-cruising electric vehicle inspired by 2011’s Japan tsunamis, is now on its way toward production.

An acronym for “First One Mile Mobility,” the concept was first introduced in Feb. 2014 as the world’s “smallest class 4-seater electric vehicle,” specially designed to handle close-range travel, emphasizing fewer cross-country trips and more short drops from one’s home to the bus stop or train station.

Powered by two in-wheel electric motors for a modest 6.7 horsepower and 207-pounds-feet of torque per wheel.

This results in a top speed of 49 mph and a range of up to 99 miles on a single charge. Its true utility is in its water propulsion design, where the intention is to use its floating mechanism in flood emergencies. The bulk of Fomms research has focused on its water propulsion technology, with work alongside University of Tokyo researchers to define its wheel and steering wheel.

Behind the project is Hideo Tsurumaki, a former lead Toyota engineer and professional racer, who witnessed the Japanese tsunami’s devastation first hand as it swept escapees in vehicles before sinking into the water. After drawing inspiration for a compact, watertight and floating vehicle designed to withstand strong currents, Tsurumaki developed the prototype.

Now, its fourth iteration is on track for a Dec. 2018 production date, with sales expected shortly after that. Assisting its production efforts is Trinex Assets Co. a Thailand-based real estate company, along with Tamanda Denki Co. and Funai Electronics Co. as investors.

Some analysts have speculated about the viability of its business model, with its water propulsion and sealing capabilities contributing to an additional cost which leaps above the relatively high cost of electric cars. As a result, Tsurumaki continues to focus on long-term stability at lower costs. No word if this would ultimately endanger its water future as a result.