88 90q vs 4kq differences?

[Mason Bender <mbender@freenet.columbus.oh.us>]

Deqr Quattrophiles-

I am considering an 88 90q.  I understand some of the differences (body
style, fuel injection, ABS.  What are some of the other differences, and
are there any additional problem areas/improvements?

Is the suspension set up similar?  Didn't the 88 90 include a torsen
center diff?  What is the reliability of this set up?

Thanks for the info,
Mason B