Wasn't sure about weighing in here, but I have to agree fully with this post.
I personally think forces view is way too distracting to race with. I have to look ahead of me to anticipate what's coming. Not look at what's going on with the car right now. I would be too late to react and as such forces view would slow me down, not speed me up.
S.E.T.H. I think there's a little wisdom in seeing so much opposition from people who have been very serious racing sim drivers for years, and who are telling you that it doesn't make you faster. Except for those who are learning, the mentioned tools can help you improve your driving. But those will only take you so far. The last distance to cover to become a really good racer comes from within yourself. It won't be delivered to you by features such as forces view while driving.
A moderation note in general : this thread already started a little heated, so it's not weird to see heated replies. But every time I see a post that just says someone's a retard, I die a little inside. Why is that necessary? I'm in a good mood now, but don't be surprised if one day i apply an instant ban on such posters. I hate pointless aggression with a passion.