Thoughts on fire suppression system?

[beeman]

There are a couple threads in the Roadster and 818 sections, has anyone installed one on the GTM? I'll be tracking some so it's a safety issue, but more on my mind is not losing the car to a fire.
Does anyone have thoughts on whether it is a waste of money?
Looks like modern units are FE-36 rather than Halon. But per https://www.ioportracing.com/faq/fire.htm a disadvantage is that it does not quench the fire. So is it only designed to get you out of the car, not to save the car?
What about foaming water-based systems? Looks like you cannot let these systems freeze, makes sense. I could see using this on the engine bay, but wouldn't want it in the cockpit...sounds like a mess. But if it saves the car....