Schwinnsta, thanks for the info. That's not bad at all for such a frame design.
Jipe, yes, 378 Wh on a folder may be enough for many. Especially for those who have to lift the bike often. Though as you say, the Evelo isn't light. A 15 kg Fazua eBirdy would be really nice.

Birdy is expensive and hard to make profitable partly because of all the either fully custom or "rare" parts: front disk hub, rear hub with 9t cassettes, seat post, handlepost, chain management thingy, and more. Adding special motor parts to this only makes it more expensive. It's clear why Pacific put everything in the rear wheel. It's the simplest way, hence the cheapest.

I see for the E-BIRDY Monocoque they claim 13.1 kg w/o pedals! Seriously light. It's just a 155 Wh battery, though. Less than a third of a Bosch battery. And it seems to be a singlespeed. So in more hilly places the motor won't get much help from the rider, the cadence will be low. Could work well in flat citites.
https://www.pacific-cycles.com/e-bir...IRDY-Monocoque

But seems to be a full 250 W motor, and it has regenerative braking. Few ebikes has this.
https://www.zehus.it/products/

It will extend the batteries somewhat, but likely less than 10% according to this I just read:
https://electrek.co/2018/04/24/regen...-how-it-works/