By Luc Olinga The company has just fulfilled a promise that has long haunted it. Nikola (NKLA) – Get Nikola Corporation Report just kept a promise. The electric truck manufacturer has just taken an important step in its young history. And it’s a step that could change his future. Indeed, in April the group delivered the first units of its long-awaited Tre battery electric trucks (Tre BEV). In fact, the company that started producing the Tre BEV at the end of March delivered 11 copies in April, which is a first. “During the first quarter, we reached a significant milestone with the start of ser…