It will weigh in at 500lbs, lighter than most standard combustion engines, and will fit comfortably under the hood. Stevens completed his MaxFelaser in 1985 and is now integrating it with a modified Tesla
turbine and generator. The thorium-based system seems to be much more realistic than any uranium-fueled arrangement. Though the former is safer than the latter, radioactivity levels and the threat of the devices being used in a perverted and harmful manner could be imagined. We last saw a nuclear-powered prototype at the 2009 Chicago Auto Show.