I wasn't aware that modern cars already used this fuel cut-off feature...its good that they do that.
My car has a manual tranny and manual steering, so no worries there...I just mentioned auto trannies and power steering so that maybe my idea could extend to other cars.
I'll have to do a little research on vacuum canisters. If anybody can offer some decent links that would be awesome. In the meantime I'll check the archives on this site. I'll also have to practice that handbraking technique in some low traffic areas, it sounds worthwhile.
By the way, here are the selenoid valves I was thinking of using:
http://www.bucksales.com/Principals/...v/GPValves.htm
Part # SV430. Its more of a general purpose valve and isn't automotive specific, but I think it should work. If anybody can think of a valve that would be better suited please let me know.