AFS Trinity Power has developed patent-pending technology that will make it possible for plug in hybrid electric vehicles to achieve 150 MPG, go 40 miles in all-electric mode, and use gasoline for additional unlimited miles in hybrid mode. In July of 2007, the company made an effort to build two fully operational prototypes using off-the-shelf components. The two vehicles (Saturn Vue’s), were built in less than six months and were unveiled in 2008 at the North American International Auto Show in Detroit.