Toyota Motor Corp. has started buying electric motors for hybrid cars from Hitachi Ltd. to help meet surging demand for the fuel-efficient vehicles, a major Japanese business daily said on Monday.A rise in gasoline prices has spurred growing demand for hybrid cars -- especially in the United States -- and Toyota's own supply capacity for hybrid car parts is likely to fall short of demand in the medium- to long-term, the Nihon Keizai business daily said.