Call me anal, but I picked up my dad's habit of keeping a gas log for the vehicles I drive.
So back in the day (when my age ended with "-teen") the GTR got numbers ranging from 37-47 mpg, I still have that log.
So it does beat what my daily driver gets, but I'd have to ride it lots more to justify the cost of plates, insurance, new tires, etc as being covered for with the increased mpg.
This is offset by the "what is it?" which is then followed with a "I didn't know they made motorcycles", that is darn near priceless!