Without the NAV system, the car reports back on the screen by the speedometer, which is trip milage (Eco mode bar graph) and tank mileage. You don't get the detailed breakdown of the last 1/2 hour, etc.

I didn't think the greater detailed consumption screen was worth the extra $1200 or so, and virtually all driving is done around an area that I grew up in (so I know it better than any NAV system.) It's all personal preference, ya know...

Thanks.