Based on my experience, there are two settings for the SPF parking brake.
1. Completely useless.
2. Almost completely useless.
The best solution is to park on a completely level surface. In that situation, the parking brake works extremely well.
Great car. Not so great parking brake.
There are two threaded adjusters where the cables attach to the handbrake lever. I don't have a picture I can find right now, but they are forward of this where they attach to the handbrake lever.This is a follow-up to the parking brake investigation.
There are NO adjusters inside the cockpit. The adjustment is performed in two ways: