This kind of vehicle will be used by us frequently.
我先解釋一下這個.
一般,主語是我們,人們,或者當今人們.都要省略被動的主語.所以,二樓的,基礎基礎~
From now on this will serve us as a common transportation means——外國人也不會這么說.真的.太書面了.很別扭,感覺很做作啦.
這幾個答案都可以：
This is the vehicle we are going to use.
It is the very vehicle that we are going to use （個人是覺得加那個very很不符合語言習慣,雖然沒錯.只是真正外國人不會這樣說.）
It will be a popular vehicle in the future 這句很好