Photo courtesy of Elio Motors.

Photo courtesy of Elio Motors.

Elio Motors has started work on a prototype of its enclosed, three-wheeled vehicle, the company announced. The P5 will include Elio Motors' recently unveiled 0.9 liter, 3-cylinder engine prototype and a manual transmission.

The company is expected to launch the vehicle, which is expected to get up to 84 miles per gallon and sell for $6,800, in the middle of 2016.

The P5 is the first in a series of 26 prototypes code-named P5 through P30 that will be developed for a variety of testing and validation purposes.

The transmission on the P5 will be a multi-mode manual transmission manufactured by Aisin. Elio and its manufacturing partner Comau will build the vehicle at a world-class manufacturing facility in Shreveport, La., where General Motors previously built the Hummer H3 and Chevrolet Colorado.