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Hi, how do you legally register your vehicle after that ? Can you pass the annual technic control in your country with that engine ?I heard that motors running on air are quite efficient, would it not be less expensive and more ecological to do that instead ?
Just wondering : maye that material would be great for solar heaters (put the pipes behind a wooden transparent plate). Wood retains heat easely but I don't know if that would compensate for the loss of heat due to the more opaque plate (less light entering).