The Ray Sphere was a device used by transferring the neuro-electric energy from a group of people to concentrate it into a human indevidual to unlock his/her powers. Though it will unlock the dormant abilities of the Conduit, it will kill the catalysts, and worse, cause a catastrophic explosion.
How many gallons of gas does the average mid-size car hold? The average fuel tank size for mid-size cars is 16 gallons. If the  price of gas was $3.59 per gallon, it would cost $57.44 to fill a  16 gallon tank.
Therefore, your smaller economy cars usually have 10 gallon tanks, where your larger luxury cars will have 18, 20 or 22 gallon tanks. The same theory holds true with your midsize motor-yachts. Most are fit with fuel tanks for a range of 3,500 nm. This will get them across the Atlantic, and across the Pacific.