The Empulse is probably at or over 62 miles of range @ 62 mph.
CRP says for the Energica:
150 kM @ 80 km/h – 190 km @ 60 km/h – 100 km @ 100 km/h – 50 km ON RACE TRACK
93 miles @ 50 mph - 118 miles @ 37 mph - 62 miles @ 62 mph - 31 miles on race track
Surprising to see a drop of 31 miles (33%) from a 12 mph increase from 50 mph.
Zero S loses 17% range from 55 to 70 mph.
Zero DS loses 20% range from 55 to 70 mph.
Zero FX loses 32% range from 55 to 70 mph.
FX is geared a little shorter than DS / S, so it's possible that worse aerodynamics + motor inefficiencies lead to poor 70 mph range. Possibly the Energica motor is simply inefficient at higher speeds.