By Luc Olinga The electric vehicle maker recently increased its prices and had also implemented a trick to boost its margins and revenue as revealed by TheStreet. It is so rare that it deserves to be underlined. Elon Musk and Tesla (TSLA) – Get Tesla Inc Report never retreat in the face of adversity. The electric vehicle (EV) maker, for example, has made two price hikes on its cars since the start of the year as similar moves by rivals have been met with an outcry from consumers. However, after a story by TheStreet reporting that electric vehicle maker Tesla had implemented an ingenious trick …