here is my Fuel Economy information. i do a 15 mile commute via local/highway to work 5 days a week. on average i'd say i do 50/50 local/highway. I do a bit of spirited driving 1-2 times a day. (flooring the car to 70-80 when merging, driving real fast on wind roads near my house) so i tink i am a pretty average Z driver. I dont baby the car and use it like a corolla, but i dont track it.
pics are via gas cubby. its an iphone ap that tracks your fuel/maintenance costs.