I got about 20mpg driving around on snowy roads.

 

Holy Crap! Why such crappy mileage? My Honda Rubicon gets about 35 MPG and that's on slow trail and forest circus road type riding. I make over 120 miles on a full tank. I was thinking of getting a King Quad, but maybe not with that kind of gas guzzling mileage.

 

You comparing a 32 hp (older Rubicon) 28hp if its the newer 475 Rubicon vs a 45hp KQ. Like comparing a car to a Pickup truck.

Honda seem good on gas though my friends 500 Foreman get a little over 100 miles on a 4.2 Gal tank about the same as my 500H.O with a 5.25 gal tank. Again there is a 7hp difference.

The 700 KQ has a 4.6 Gal tank so 80-85miles seems ok. Speeds matters also a 15mph trail ride does not drink gas like a 50mph dirt road ride.

If you think 20mpg is bad do not get into the sport of PWC and Snowmobiles. LOL
I get about 120miles out of my sled with a 10 gallon tank put its a 165hp 800 twin 2stroke.