Production Years?

[Snoop Dobb]

This is a pretty simple question.  I've been googling all morning, and
haven't been able to find a conclusive answer...  Was the 200q20v only
produced in '91?  I'm looking at a 200 quattro turbo, but it's a '90, so
it doesn't appear to have the 20v engine.  Can anyone verify this?  Can
anyone also give me a quick breakdown of the significant differences
between the '90 and '91 models?  It seems like the '90 200 turbo is
quite an impressive piece of engineering as well, with similar
performance to the 20v?

Also, please cc me directly as I'm not subscribed to the list... yet.

Thanks!

-Matt