"Four-wheeled electric vehicles are not dissimilar in structure and operation from a car, but the design process was much more difficult because a mobility scooter isn't even one-third the size of a car," Wu explains.
「四輪電動車其實已經和汽車的結構、操向性差不多，但因為要做在不到汽車 1/3 大小的代步車身中，所以難度很高，」伍必翔解釋。