In the AeroCanard I want to build, having ordered the plans and expecting delivery thereof, I want to install a turbo-diesel auto-conversion. I was contemplating the Mercedes Benz or Volkswagen 3.0 liter V6 225HP turbo-diesels, but their weight at ~ 450 pounds seems prohibitive; then I thought of two Mitsubishi Colt 1.5 liter 95 HP turbo-diesels, strapped together ala Leon brothers, twin-Suzuki Cozy, or at opposite ends of a Cozy/Defiant hybrid; the new engine of choice, however, outshining everything else in every discipline, weight, horsepower, torque, fuel consumption, seems to be the all new Toyota D-4D Clean Power turbo-diesel to be used in the Toyota Avensis and the Lexus IS: 2.2 liter, in-line four cylinders, 175 HP at 3600 RPM, 400 Nm (300 foot pounds) of torque from 2000 to 2600 RPM, all aluminum construction with cast iron liners, ~ 160 kg (~ 350 lbs.), manufactured in the all new Toyota factory in Poland with a capacity of 150000 engines a year. For an article on the new Toyota Avensis and this engine, including a couple of pictures of the engine, go to: http://www.japanesecarfans.com/news.cfm/newsid/2050301.011 With a cog-belt PSRU, to take advantage of the few HP above the torque peak at 2600 RPM, to take care of any resonance problems and to raise the prop-shaft, it should be the ideal engine for a Cozy/AeroCanard. What do you think?