Fast 5--Seriously?

As a host of a movie/tv oriented pod cast i have to keep up to date of upcoming releases and try and have an open mind. Keeping that in mind i just watched the trailer for fast 5 or fast and the furious 5 if you will. All i have to say is really? was that sequel actually necessary? Was there a lot of unanswered questions from the other 4? I guess Vin Diesel has to eat. I wonder if they'll drive really fast in cars. Oh well.