I'm providing this info as both an FYI, and to see if anyone knows of a similar or equivalent system.
In addition to my GTR, I own a 2005 Ford GT (yes, my garage looks like Heaven thank you) and am active on the Ford GT forum. Turns out that there are a few 'common mods' to the 2005-2006 GT's, one of them being an automated fire control system. Not exactly a substitute for a manually activated system, it is best to bo looked at in the context of handling both an engine compartment fires during operation, as well as intervening in any potential fires with the car off and parked.
A well founded fear in supercar ownership is, due to the heat and complex fuel plumbing of many mid-engine designs, fire often erupts some time after the car is shut down. Pressure in the fuel system, no high-speed air flowing through the engine compartment to keep dry any potential leaks, and a hot manifold or block to ignite small amounts of fuel while the fuel system is still pressurized and is parked in a garage attached to your home. Thus, losing the car is bad enough, but losing the house along with it is enough to catch the attention of many car owners.
I installed one of these in my GT some years ago and rest a bit easier for having done so. I am considering installing a similar system in my Ultima which has an LS7 installed. The car does have a race-style button-operated fire system already. I believe that this automated system is made by SafeCraft here in CA but can be seen here (http://www.cooltechllc.com/ford/gt_halon_fire_supression_system.shtml).
Does anyone know of a similar system and is willing to share?
Thanks,
B
P.S. I have no affiliation with SafeCraft or CoolTech (other than being a customer of both).

Interesting and looks working very well. Fire is a dangerous and destructif element, so anything to extinguish quickly will probably also lessen the final bill.
Something I will definitely be looking at in my build.

Lifeline have the alternative to halon. Used in F1 I believe and also in my Radical SR3RS. 360 it is called makes less mess as well.

budget kit?

http://www.proteng.de/dokumentation/funktion

It does seem a bit violent. But I assume it would be worth some potential damage if it saved the car from complete immolation. By the time this thing went off, I suspect one would have to replace quite a few bits in the engine compartment anyway. So the net damage might not be much different than a more typical fire system.
B

Nice and environmental friendly H2o and N solution, plus you get the chance to take a shower to cool down

Price for a typical Ult?