Bike - compression ratio, tank size, published full tank distance:
Vario - 10.6, 5.5L, 284km
Dash - compression 9.3, 4.3L, 262km

Real world distance per tank will be a huge difference, I'll definitely take the Vario
- when the bike reach low fuel, the Vario used 4.7L while Dash used 3.5L
- that's 34% in tank size relative to Dash
- FC wise, Dash is 15% better
- effective distance to low fuel, Vario will go further than Dash

Maintenance wise, the CVT will need tender whenever something feels wrong, quickly need to check so the pulley system won't makan. Can take up to 500 to service, repair or replace

Just a quick mention, my 400cc scooter is 20~22km/L with 15L tank. It goes 250km to low fuel, consuming 10L. It consumes twice the amount of kapcai, but travels almost similar distance per tank...

why are you considering a scooter in the first place? you should ask the groups and friends, if they will go back to kapcai or stay with scooter

standard is how many gram?
you using the round pulley or slider type?

different ppl buy bikes and put in different considerations

different stroke for different folks

I also never imagined I'd buy a scooter and here I am a proud owner of a maxi scoot

my arsenal consists of that scooter, a few 2 strokes and another 4 stroke machine, and I can say, I've worked on improving fuel economy on the 2 strokes for many years, and reached to 40km/L at one time, I now keep them because they're highly repairable, and more fun that most bikes

my std 25g roller, put 26g slider, wish I had gone even heavier

scooter is really good for town or small city use, without highways and many stop go traffic

if full tank not even 100km, you'll have to wonder which scooter model and maintenance of the bike, to me, clearly, there is something wrong with the bike, or the tank is very small, like 3.2L but the owner considered 2.5L as full tank, and a lot of red light stops, even that is also around 40km/L (100km / 2.5L)

some scooters have start stop, such as the PCX

a more suitable reference for you would be, as I shared earlier, my 400cc scooter, 20~22km/L city ride
no other scooter (single cylinder) should be worse than this, otherwise something is wrong with the scooter