BMW will help Toyota grow -- not that Toyota needs help.Toyota Motor (TM 2.94%) stock raced 3% higher through 9:50 a.m. ET Tuesday after Nikkei Asia reported on a strengthening alliance between the Japanese automotive titan and Germany's BMW (BAMXF 1.08%) (BMWYY 0.65%). According to the report, BMW is hoping to produce a mass-market hydrogen fuel cell automobile in a few years -- and wants Toyota to help.Toyota and BMW: Better together?Toyota and BMW will officially announce their expanded partnership early ...