[1.2gees]

Since we're picking the details, the pictured car appears to be a 924 Carrera GTR (Roughly a modified type 937). There were no 944s sold in the model year 1981. The GTP car you speak of is a 924 GTR (of the 19), w/the 2.5 liter Porsche engine, hence the GTP, which stands for prototype.

For 1989 all 944 turbos were uprated to previous year's "turbo S" specifications. There is indeed no 1989 (or later) 944 turbo S. Any source claiming otherwise is incorrect.

And I wasn't going to get into it but powersteering is as follows:

1983: optional in all markets.

1984: optional in europe, included w/cars that had the automatic transaxle option, and standard in the US.

1985: standard for all models.
Ahmet