@ Dan
Are you talking about the Aquila a few posts up?
Fuel fuel payload is about 160 kg. You go further than 500 NM with that with 120 kts. 600 NM is also possible with about 100 kts.
I wouldn't call the Aquila new, it's around for more than 10 years now.
I don't know if the airframe/engine combination needs to be certified for more than 1% ethanol. I do know that Rotax announced in one of their publications that the 912 is allowed to burn fuel with up to 10% ethanol.