As usual with MMC, they say it would cost too much to redevelop the three wheeler with this option.
Bearing in mind that both the EV3 And the 5 speeder are quite different in design and build.
The EV3 has a lot of weight saving material in it.
I too have asked about the Kicked up rear end, but to know avail.
Maybe if enough people ask for it!!!!
John.