... for short distances anyway!

As you all know, the new Q45 and M45 have this MPG page on the LCD display. Gives you a reasonably accurate assessment of mileage.

Although I tend to average about 16mpg or so in my M45, the other day I noticed that the reading was over 30mpg for one section that I reset the counter at. So, I went to a nearby long hill (Silver Creek Valley Road, east of 101, for those of you familiar with San Jose).

At the top of the hill, heading towards 101, I reset the MPG indicator at about 50 mph. The car gently accelerated down the slope (with my foot off the gas) since it is a decent descent. At about three-quarters of the way down, now doing about 70mph since I have not touched the accelerator pedal yet, my mileage registered 71.7mpg for that two or three mile stretch!

BY the time I reached 101, about four miles away, I was still showing an average of 51mpg. I was babying the accelerator to get the best mileage I could, without slowing below the speed limit (45mph).

Cool what us curious techno-geeks can do, huhn?

Z

Our suburban has an INSTANT MPG thingy... I get it up to 70, then let go of the gas and it goes up to 99mpg..... I floor it and it goes down to 2!!

Our twin-turbo Volvo XC90 shows 0.8 when flored I feel so anti green-peace. Good thing my new G doesnt tell me how much it eats

Cool! The numerical reading on the M45 does an average over some miles, so it will not read instantaneously on the numbers. But the little "leaf" bar graph on the side gives a very rough estimate. Flooring the M45 drops it down to about 3 to 4mpg (estimated from the bar graph.)

I made a Phoenix-to-Sedona-to-Phoenix run in a 2004 I35 not too long ago. I reset the trip meter beforehand.

I averaged 29 mpg, and my average speed was 79 mph (you know what THAT means, boys and girls). Pretty impressive, IMO.

You have waaaaayyyy too much time on your hands.