Subsequently, the ‘‘3rd G21’’ project was established in
September 1994, and the hybrid system concept was solidified. Then in February 1995, a specialized hybrid engine sys-
tem development project called ‘‘1st BR-VF’’ was commenced in addition to the G21 vehicle development project. After that, this project continued into its 2nd and 3rd
phases, and in April 1997 prior to the Prius being released onto
the market, the project was converted into an official line
organization called the EHV Technology Division.