It's not QUITE as bad as it seems - I'm only using about 60-70% of the pack capacity (trying to avoid charging past 80%, discharging below 20%).
Of course a trike would be more fun and efficient.
35-ish years ago I dreamed of making one. Sketched these...
Thread: I was an aero/HPV/velomobile nerd way back when... (found some old drawings of mine)