Some years ago I've brought the subject of the SMART PLUG up in this tread, everybody just like you did show interest and we thought that we had found a response to our prayers!!!! but unfortunatelly they don't sell or have these glow plugs available to the public, I've also read somewhere in this tread tha a single plug would cost as much as $100.00 because of all the precious metal used for the catalityc efect desired, but we are still hopeing that something like this technology will come around and be available to us and help us in our quest to a better and more economical source of energy.
Thanks for sharing all of your researched info and keep it going, thats what makes us inventive and solutions finders.
Bill Pomplun A.K.A. Aero Nut.