451 smart fortwo

I'm interested in what various experiences there are for fuel economy for different Smart owners. I went into Smart ownership with fairly high expectations. I was really looking for a number that starts with a 4. To this point I have not been disappointed. I got the car in late November 2008, and during the winter (Maryland) averaged a very consistent 42 mpg. Now that the weather is warming up my number is creeping up, now about 43.5 mpg in May.
I drive a combination of country roads with a little highway, with at least some period in jammed traffic nearly every day both ways on a 42 mile commute one way. I'm not being particularly careful about speed or acceleration, and use the manual shift routinely to drive the car the way I want to.
I believe a significant factor is cold starts per mile. My cold starts per mile is probably quite low compared to many, and may contribute to better than average fuel economy. But then I have to ask if I'm getting better than average fuel economy. What aboun the rest of you?

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i try to use the same pump/station. and it's pretty accurate, i fill to where i can see fuel in the neck, i don't trust the auto shut-off. i had to use a different pump today, same station, my pump was out of order, i did a slow fill, like normal and it took 2% more fuel than the SG2 thought it should. it was cooler today than the last few weeks. 2 percent is not a huge deal, when the SG tracks to hundreths of a gallon per hour. i racked up a 49MPG tank today. i only fuel up every 2-1/2 to 3 weeks.

my best tank is now 54.5MPGs, best trip over 10 miles is 61.6MPGs. my first job was pumping gas in '76, the pumps had those scrolling dials for counters, down to 1/10 of a gallon, not the 1/1000 of a gallon of our modern pumps... times have changed!

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