Actually, the Audi TT RS Turbo is the 4th or 5th different engine Al Solaroli's patented Pseudo-Adiabatic engine technology has been applied to -- that I am aware of. Two of the engines are diesels, one a Porsche 935 K3, another was the engines used in Reggie Fountain's Rio Roses for a little R&D and of course the Audi. Results in all engines was similar to the Audi. 100+ increase in HP; huge increase in torque, 90%+ increase in fuel efficiency and a significant reduction in engine temperature. In addition to these he also installed a retro-fit kit on Senator McCain's 2005 Chevy DuraMax just prior to the US 2008 Presidential elections. McCain was so amazed with the results he spoke numerous times during the election cycle of how technology was going to eliminate or greatly reduce the importation of oil while greatly reducing the carbon emissions. This stuff is for real and the purpose of the video was to introduce it to the world.