Stuck 4 times in traffic for the past week, 2 of those were for 1 hour and half each time, bumper to bumper. I knew my fuel consomption would be bad, it's 8.9 for this week true consumption calculated with fuelly, (Micra computer show 7.9). We had a large snow flurry with a foot of snow, and bad weather each day of the week. It usually take me 20 minutes drive to get back home, those days it took me nearly one hour 45 min. The good news is that 8.9 is about as bad as it gets when stuck in big traffic jams half of the time and with snow conditions, heater and AC to remove condensation.
But since the gas price has dropped so much, I don't see the difference in my wallet.
View my fuel log 2015 Micra SR automatic: 7.0 L/100 km ... 40.4 mpg (Imp) ... 14.3 km/L ... 33.6 mpg (US) ...