To be honest, however, I admit that I didn't prove my point and that I can't still. I don't know anything about the technical aspects of either GT's or FM's physics engines, so I can't easily discuss their differences. But I can tell when I like the way something looks or behaves and I maintain my personal opinion that GT5 occasionally demonstrates more lifelike suspension movement within certain contexts than FM4.
The purpose of a discussion forum is to discuss.
If you have a feeling that GT5 demonstrates more lifelike suspension, and you wouldn't be the first person to make that statement, it's worthwhile looking at why. You don't need to know anything about physics engines to be able to analyse your own reactions.
Scaff makes the valid point that what you were feeling as an objective truth is not, that GT5 is in most ways a fairly poor physical simulation, and is certainly not inferior to FM4. Hard to argue with that, and you shouldn't try, because there's pretty strong evidence that he's right. Instead, what is it about GT5 that makes you *feel* like it's a better sim, even though it's not?
You can be quite specific about this without necessarily knowing a lot about what's going on behind the scenes. Gather examples of instances that you feel are excellent, and it should become obvious what the common factors are between them and thus what is probably the cause of your feelings.
There's a whole level of things going on in a game beyond the pure simulation of it that add to immersion and the feeling of "reality". Shift was an obvious example of trying to do this, with it's blurred vision at speed, black and white shakycam during crashes, and so on. Not particularly effective, but you can see what they were trying to do. FM and GT are more subtle, but there's still a lot of stuff there and it's worthwhile picking out which aspects work well for an individual.
It's also worth thinking about these aspects seriously so that you can separate them from the pure physics side of things, something that a lot of people fail to do when talking about these games. GT5 is very, very good at providing what *feels* like an authentic experience from something that's actually fairly basic.
) ? or one of them doesn't care anymore if his opinion is being challenged with disagreement by someone else ? Like when someone " we agree to disagree " and refuse to discuss it further, I see no point discussing it further really, we can't set straight everyone's opinion in a forum, at least that's what I've learned, and I usually just read them and okay, that's cool 
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