Differentials

[joevenzon]

I have implemented differentials in the refactor. I have a couple of questions.

One, I'm making provisions for proper modeling of AWD cars, with a limited slip epicyclic (torque-splitting) center diff that drives separate front and rear limited slip differentials. Is this the correct arrangement? Do real center diffs make use of slip limiting?

Two, I found that vamos models limited slip differentials as speed-sensitive limited slip instead of torque-sensitive limited slip. How does this affect handling, and is it worth also implementing a torque-sensitive type?