Manual disc brakes vs power disc brakes questions

ir3333 said
smaller bore master = softer pedal and longer travel but more pressure.
...a 1 1/8" master will take two legs to stop / lock the wheels and the pedal will be
rock hard after an inch of pedal travel.

I can get a 1&1/32 " diameter bore MC . Stock from aspen/volare. Thats as close to 1" as i can find.

Still asking what car do i get a 15/16" bore one from?