As someone who is used to doing 100+ mile trips with my rzr I need to know a real world fuel range the Pro R cars will do? I think the tank is a gallon smaller than the Pro XP 4 and the Pro R engine is of course bigger. I really need a car that can consistently do 100+ miles minimum. I carry 1 3gal rotopax currently and have had to use it on several occasions. Any info is appreciated.