Oh dear, what a big fuss about weight and things. Estimated 0 to 60 is 4.5 secs. Isn't that fast enough? 500 Kg and a 2 liter torquey engine should be frugal too, I think the thread has developed into missing the point of this beauty. It is not high tech and I don't think it was ever intended to be, or it would be called the "EVA 3 wheeler" or "3 wheeler lifecar" and it would be radically different.