Is PASM standard in the 991.1 4S? I thought it was standard in all S models, but couldn't see it in the build sheet of this https://www.grandprimotors.com/used/...1139262926.htm

PASM is standard on all Carrera’s. SPASM or PASM Sport is an option.

PASM Thread

Incorrect based on my experience..

PASM not standard on Base 991.1 Carreras
PASM Standard on all 991.1 S/4S + iteration
S-PASM available as option on all 991.1 cars except BASE

Hope this helps