found one

[isham-research.freeserve.co.uk at pop.pol.net.uk]

>> 1989 20Vs are rare.  The factory started fitting the 20V 3B engine in
>> March 1989 - well into the 1989 model year - and only built a thousand
>> or so.  Two cars a day in March and April, doubling in May and June.  I
>> don't know how many made it to North America, but I'm betting it wasn't
>> very many.

> From the V-pages in the ETKA, the 3B 200 was made from 3/89 to 11/90 but no
> indication of how many of course.